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Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Al-Jamel A, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Averbeck R, Awes TC, Azmoun B, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bennett R, Berdnikov Y, Bjorndal MT, Boissevain JG, Borel H, Boyle K, Brooks ML, Brown DS, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Campbell S, Chai JS, Chernichenko S, Chiba J, Chi CY, Chiu M, Choi IJ, Chujo T, Cianciolo V, Cleven CR, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Dahms T, Das K, David G, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dietzsch O, Dion A, Drachenberg JL, Drapier O, Drees A, Dubey AK, Durum A, Dzhordzhadze V, Efremenko YV, Egdemir J, Enokizono A, En'yo H, Espagnon B, Esumi S, Fields DE, Fleuret F, Fokin SL, Forestier B, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fukao Y, Fung SY, Gadrat S, Gastineau F, Germain M, Glenn A, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gunji T, Gustafsson HA, Hachiya T, Hadj Henni A, Haggerty JS, Hagiwara MN, Hamagaki H, Harada H, Hartouni EP, Haruna K, Harvey M, Haslum E, Hasuko K, Hayano R, Heffner M, Hemmick TK, Heuser JM, He X, Hiejima H, Hill JC, Hobbs R, Holmes M, Holzmann W, Homma K, Hong B, Horaguchi T, Hur MG, Ichihara T, Imai K, Inaba M, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Jacak BV, Jia J, Jin J, Jinnouchi O, Johnson BM, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang JH, Kawagishi T, Kazantsev AV, Kelly S, Khanzadeev A, Kim DJ, Kim E, Kim YS, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klein-Boesing C, Kochenda L, Kochetkov V, Komkov B, Konno M, Kotchetkov D, Kozlov A, Kroon PJ, Kunde GJ, Kurihara N, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Lebedev A, Le Bornec Y, Leckey S, Lee DM, Lee MK, Leitch MJ, Leite MAL, Lim H, Litvinenko A, Liu MX, Li XH, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Masui H, Matathias F, McCain MC, McGaughey PL, Miake Y, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mitchell JT, Morrison DP, Moss JM, Moukhanova TV, Mukhopadhyay D, Murata J, Nagamiya S, Nagata Y, Nagle JL, Naglis M, Nakamura T, Newby J, Nguyen M, Norman BE, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Omiwade OO, Oskarsson A, Otterlund I, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qu H, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rukoyatkin P, Rykov VL, Ryu SS, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Samsonov V, Sato HD, Sato S, Sawada S, Semenov V, Seto R, Sharma D, Shea TK, Shein I, Shibata TA, Shigaki K, Shimomura M, Shohjoh T, Shoji K, Sickles A, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Skutnik S, Smith WC, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sullivan JP, Sziklai J, Tabaru T, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Tojo J, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tuli SK, Tydesjö H, Tyurin N, Vale C, Valle H, van Hecke HW, Velkovska J, Vertesi R, Vinogradov AA, Vznuzdaev E, Wagner M, Wang XR, Watanabe Y, Wessels J, White SN, Willis N, Winter D, Woody CL, Wysocki M, Xie W, Yanovich A, Yokkaichi S, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zimányi J, Zolin L. Particle-species dependent modification of jet-induced correlations in Au+Au collisions at sqrt[s_{NN}]=200 GeV. Phys Rev Lett 2008; 101:082301. [PMID: 18764605 DOI: 10.1103/physrevlett.101.082301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2007] [Indexed: 05/26/2023]
Abstract
Measurements in Au+Au collisions at sqrt[s_{NN}]=200 GeV of jet correlations for a trigger hadron at intermediate transverse momentum (p_{T,trig}) with associated mesons or baryons at lower p_{T,assoc} indicate strong modification of the away-side jet. The ratio of jet-associated baryons to mesons increases with centrality and p_{T,assoc}. For the most central collisions, the ratio is similar to that for inclusive measurements. This trend is incompatible with in-vacuum fragmentation but could be due to jetlike contributions from correlated soft partons, which recombine upon hadronization.
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Affiliation(s)
- S Afanasiev
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia
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Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Al-Jamel A, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Averbeck R, Awes TC, Azmoun B, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bennett R, Berdnikov Y, Bjorndal MT, Boissevain JG, Borel H, Boyle K, Brooks ML, Brown DS, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Campbell S, Chai JS, Chernichenko S, Chiba J, Chi CY, Chiu M, Choi IJ, Chujo T, Chung P, Cianciolo V, Cleven CR, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Dahms T, Das K, David G, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dietzsch O, Dion A, Drachenberg JL, Drapier O, Drees A, Dubey AK, Durum A, Dzhordzhadze V, Efremenko YV, Egdemir J, Enokizono A, En'yo H, Espagnon B, Esumi S, Fields DE, Fleuret F, Fokin SL, Forestier B, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fukao Y, Fung SY, Gadrat S, Gastineau F, Germain M, Glenn A, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gunji T, Gustafsson HA, Hachiya T, Henni AH, Haggerty JS, Hagiwara MN, Hamagaki H, Harada H, Hartouni EP, Haruna K, Harvey M, Haslum E, Hasuko K, Hayano R, Heffner M, Hemmick TK, Heuser JM, He X, Hiejima H, Hill JC, Hobbs R, Holmes M, Holzmann W, Homma K, Hong B, Horaguchi T, Hur MG, Ichihara T, Imai K, Inaba M, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Jacak BV, Jia J, Jin J, Jinnouchi O, Johnson BM, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang JH, Kawagishi T, Kazantsev AV, Kelly S, Khanzadeev A, Kim DJ, Kim E, Kim YS, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klein-Boesing C, Kochenda L, Kochetkov V, Komkov B, Konno M, Kotchetkov D, Kozlov A, Kroon PJ, Kunde GJ, Kurihara N, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Lebedev A, Le Bornec Y, Leckey S, Lee DM, Lee MK, Leitch MJ, Leite MAL, Lim H, Litvinenko A, Liu MX, Li XH, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Masui H, Matathias F, McCain MC, McGaughey PL, Miake Y, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mitchell JT, Morrison DP, Moss JM, Moukhanova TV, Mukhopadhyay D, Murata J, Nagamiya S, Nagata Y, Nagle JL, Naglis M, Nakamura T, Newby J, Nguyen M, Norman BE, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Omiwade OO, Oskarsson A, Otterlund I, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qu H, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rukoyatkin P, Rykov VL, Ryu SS, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Samsonov V, Sato HD, Sato S, Sawada S, Semenov V, Seto R, Sharma D, Shea TK, Shein I, Shibata TA, Shigaki K, Shimomura M, Shohjoh T, Shoji K, Sickles A, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Skutnik S, Smith WC, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sullivan JP, Sziklai J, Tabaru T, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Tojo J, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tuli SK, Tydesjö H, Tyurin N, Vale C, Valle H, van Hecke HW, Velkovska J, Vertesi R, Vinogradov AA, Vznuzdaev E, Wagner M, Wang XR, Watanabe Y, Wessels J, White SN, Willis N, Winter D, Woody CL, Wysocki M, Xie W, Yanovich A, Yokkaichi S, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zimányi J, Zolin L. Source breakup dynamics in Au + Au collisions at sqrt[s(NN)]=200 GeV via three-dimensional two-pion source imaging. Phys Rev Lett 2008; 100:232301. [PMID: 18643489 DOI: 10.1103/physrevlett.100.232301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2007] [Indexed: 05/26/2023]
Abstract
A three-dimensional correlation function obtained from midrapidity, low p(T), pion pairs in central Au+Au collisions at sqrt[s(NN)]=200 GeV is studied. The extracted model-independent source function indicates a long range tail in the directions of the pion pair transverse momentum (out) and the beam (long). A proper breakup time tau(0) ~ 9 fm/c and a mean proper emission duration Delta tau ~ 2 fm/c, leading to sizable emission time differences ({|Delta t(LCM)|} approximately 12 fm/c), are required to allow models to be successfully matched to these tails. The model comparisons also suggest an outside-in "burning" of the emission source reminiscent of many hydrodynamical models.
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Affiliation(s)
- S Afanasiev
- Joint Institute for Nuclear Research, Dubna, Moscow Region, Russia
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Michaluart P, Abdallah KA, Lima FD, Smith R, Moysés RA, Coelho V, Victora GD, Socorro-Silva A, Volsi EC, Zárate-Bladés CR, Ferraz AR, Barreto AK, Chammas MC, Gomes R, Gebrim E, Arakawa-Sugueno L, Fernandes KP, Lotufo PA, Cardoso MR, Kalil J, Silva CL. Phase I trial of DNA-hsp65 immunotherapy for advanced squamous cell carcinoma of the head and neck. Cancer Gene Ther 2008; 15:676-84. [PMID: 18535616 DOI: 10.1038/cgt.2008.35] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Considering that mycobacterial heat-shock protein 65 (hsp65) gene transfer can elicit a profound antitumoral effect, this study aimed to establish the safety, maximum-tolerated dose (MTD) and preliminary efficacy of DNA-hsp65 immunotherapy in patients with advanced head and neck squamous cell carcinoma (HNSCC). For this purpose, 21 patients with unresectable and recurrent HNSCC were studied. Each patient received three ultrasound-guided injections at 21-day intervals of: 150, 600 or 400 microg of DNA-hsp65. Toxicity was graded according to CTCAE directions. Tumor volume was measured before and after treatment using computed tomography scan. The evaluation included tumor mass variation, delayed-type hypersensitivity response and spontaneous peripheral blood mononuclear cell proliferation before and after treatment. The MTD was 400 microg per dose. DNA-hsp65 immunotherapy was well tolerated with moderate pain, edema and infections as the most frequent adverse effects. None of the patients showed clinical or laboratory alterations compatible with autoimmune reactions. Partial response was observed in 4 out of 14 patients who completed treatment, 2 of which are still alive more than 3 years after the completion of the trial. Therefore, DNA-hsp65 immunotherapy is a feasible and safe approach at the dose of 400 microg per injection in patients with HNSCC refractory to standard treatment. Further studies in a larger number of patients are needed to confirm the efficacy of this novel strategy.
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Affiliation(s)
- P Michaluart
- HSP65 Clinical Trial Group, University of São Paulo, São Paulo, Brazil
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Torre LG, Carneiro AL, Rosada RS, Silva CL, Santana MHA. A mathematical model describing the kinetic of cationic liposome production from dried lipid films adsorbed in a multitubular system. Braz J Chem Eng 2007. [DOI: 10.1590/s0104-66322007000400002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abstract
New weapons are needed in the fight against tuberculosis, both antibacterial drugs and a vaccine. If one new antituberculosis drug is developed it will encounter emerging resistance; at least two are needed, to be used in combination only. This is a complicated and difficult goal. In contrast, an effective new vaccine would have multiple antigenic targets within the bacterium, making the emergence of resistance to the vaccine unlikely. This is a simpler goal to achieve, and recent research indicates that it may be within reach. A diverse range of protein antigens can give encouragingly high levels of protective immunity in animal models when administered with adjuvants or as DNA vaccines. Accelerated arrest of bacterial multiplication, followed by sustained decline in bacterial numbers, are key parameters of protection; the vaccine must target antigens produced by actively multiplying bacteria as well as growth-inhibited bacteria. Consistent with this, the protective antigens have been found among secreted and stress proteins (for example Ag85, ESAT-6, hsp65, hsp70). Species-specific antigens are not required, so these remain available for diagnostic tests. Adoptive transfer of protection from vaccinated or infected mice into naive mice by transfer of purified T cells and clones shows that protection is expressed by antigen-specific cytotoxic T cells that produce interferon-gamma and lyse infected macrophages. These cells are produced in response to endogenous antigen. DNA vaccination appears to be superior to recombinant mycobacterial or viral vectors for this purpose.
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Affiliation(s)
- D B Lowrie
- National Institute for Medical Research, London, England.
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Fonseca DM, Bonato VLD, Silva CL, Sartori A. Th1 polarized response induced by intramuscular DNA-HSP65 immunization is preserved in experimental atherosclerosis. Braz J Med Biol Res 2007; 40:1495-504. [PMID: 17934646 DOI: 10.1590/s0100-879x2007001100010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2007] [Accepted: 08/02/2007] [Indexed: 11/22/2022] Open
Abstract
We previously reported that a DNA vaccine constructed with the heat shock protein (HSP65) gene from Mycobacterium leprae (DNA-HSP65) was protective and also therapeutic in experimental tuberculosis. By the intramuscular route, this vaccine elicited a predominant Th1 response that was consistent with its protective efficacy against tuberculosis. It has been suggested that the immune response to Hsp60/65 may be the link between exposure to microorganisms and increased cardiovascular risk. Additionally, the high cholesterol levels found in atherosclerosis could modulate host immunity. In this context, we evaluated if an atherogenic diet could modulate the immune response induced by the DNA-HSP65 vaccine. C57BL/6 mice (4-6 animals per group) were initially submitted to a protocol of atherosclerosis induction and then immunized by the intramuscular or intradermal route with 4 doses of 100 microg DNA-HSP65. On day 150 (15 days after the last immunization), the animals were sacrificed and antibodies and cytokines were determined. Vaccination by the intramuscular route induced high levels of anti-Hsp65 IgG2a antibodies, but not anti-Hsp65 IgG1 antibodies and a significant production of IL-6, IFN-g and IL-10, but not IL-5, indicating a Th1 profile. Immunization by the intradermal route triggered a mixed pattern (Th1/Th2) characterized by synthesis of anti-Hsp65 IgG2a and IgG1 antibodies and production of high levels of IL-5, IL-6, IL-10, and IFN-g. These results indicate that experimentally induced atherosclerosis did not affect the ability of DNA-HSP65 to induce a predominant Th1 response that is potentially protective against tuberculosis.
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Affiliation(s)
- D M Fonseca
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
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Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Al-Jamel A, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Averbeck R, Awes TC, Azmoun B, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bennett R, Berdnikov Y, Bjorndal MT, Boissevain JG, Borel H, Boyle K, Brooks ML, Brown DS, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Campbell S, Chai JS, Chernichenko S, Chiba J, Chi CY, Chiu M, Choi IJ, Chujo T, Cianciolo V, Cleven CR, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Dahms T, Das K, David G, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dietzsch O, Dion A, Drachenberg JL, Drapier O, Drees A, Dubey AK, Durum A, Dzhordzhadze V, Efremenko YV, Egdemir J, Enokizono A, En'yo H, Espagnon B, Esumi S, Fields DE, Fleuret F, Fokin SL, Forestier B, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fukao Y, Fung SY, Gadrat S, Gastineau F, Germain M, Glenn A, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gunji T, Gustafsson HA, Hachiya T, Hadj Henni A, Haggerty JS, Hagiwara MN, Hamagaki H, Harada H, Hartouni EP, Haruna K, Harvey M, Haslum E, Hasuko K, Hayano R, Heffner M, Hemmick TK, Heuser JM, He X, Hiejima H, Hill JC, Hobbs R, Holmes M, Holzmann W, Homma K, Hong B, Horaguchi T, Hur MG, Ichihara T, Imai K, Inaba M, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Jacak BV, Jia J, Jin J, Jinnouchi O, Johnson BM, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang JH, Kawagishi T, Kazantsev AV, Kelly S, Khanzadeev A, Kim DJ, Kim E, Kim YS, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klein-Boesing C, Kochenda L, Kochetkov V, Komkov B, Konno M, Kotchetkov D, Kozlov A, Kroon PJ, Kunde GJ, Kurihara N, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Lebedev A, Le Bornec Y, Leckey S, Lee DM, Lee MK, Leitch MJ, Leite MAL, Lim H, Litvinenko A, Liu MX, Li XH, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Masui H, Matathias F, McCain MC, McGaughey PL, Miake Y, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mitchell JT, Morrison DP, Moss JM, Moukhanova TV, Mukhopadhyay D, Murata J, Nagamiya S, Nagata Y, Nagle JL, Naglis M, Nakamura T, Newby J, Nguyen M, Norman BE, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Omiwade OO, Oskarsson A, Otterlund I, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qu H, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rukoyatkin P, Rykov VL, Ryu SS, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Samsonov V, Sato HD, Sato S, Sawada S, Semenov V, Seto R, Sharma D, Shea TK, Shein I, Shibata TA, Shigaki K, Shimomura M, Shohjoh T, Shoji K, Sickles A, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Skutnik S, Smith WC, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sullivan JP, Sziklai J, Tabaru T, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Tojo J, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tuli SK, Tydesjö H, Tyurin N, Vale C, Valle H, vanHecke HW, Velkovska J, Vertesi R, Vinogradov AA, Vznuzdaev E, Wagner M, Wang XR, Watanabe Y, Wessels J, White SN, Willis N, Winter D, Woody CL, Wysocki M, Xie W, Yanovich A, Yokkaichi S, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zimányi J, Zolin L. Elliptic flow for phi mesons and (anti)deuterons in Au+Au collisions at square root of sNN=200 GeV. Phys Rev Lett 2007; 99:052301. [PMID: 17930746 DOI: 10.1103/physrevlett.99.052301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2007] [Indexed: 05/25/2023]
Abstract
Differential elliptic flow (v(2)) for phi mesons and (anti)deuterons (d)d is measured for Au+Au collisions at square root of sNN=200 GeV. The v(2) for phi mesons follows the trend of lighter pi+/- and K+/- mesons, suggesting that ordinary hadrons interacting with standard hadronic cross sections are not the primary driver for elliptic flow development. The v(2) values for (d)d suggest that elliptic flow is additive for composite particles. This further validation of the universal scaling of v(2) per constituent quark for baryons and mesons suggests that partonic collectivity dominates the transverse expansion dynamics.
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Affiliation(s)
- S Afanasiev
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia
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Adare A, Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Bataineh H, Alexander J, Al-Jamel A, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Asai J, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Baksay G, Baksay L, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bennett R, Berdnikov Y, Bickley AA, Bjorndal MT, Boissevain JG, Borel H, Boyle K, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Campbell S, Chai JS, Chand P, Chang BS, Chang WC, Charvet JL, Chernichenko S, Chiba J, Chi CY, Chiu M, Choi IJ, Choudhury RK, Chujo T, Chung P, Churyn A, Cianciolo V, Cleven CR, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Cussonneau JP, Dahms T, Das K, David G, Deák F, Deaton MB, Dehmelt K, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Dion A, Donadelli M, Drachenberg JL, Drapier O, Drees A, Dubey AK, Durum A, Dutta D, Dzhordzhadze V, Efremenko YV, Egdemir J, Ellinghaus F, Emam WS, Enokizono A, En'yo H, Espagnon B, Esumi S, Eyser KO, Fields DE, Finck C, Finger M, Finger M, Fleuret F, Fokin SL, Forestier B, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fujiwara K, Fukao Y, Fung SY, Fusayasu T, Gadrat S, Garishvili I, Gastineau F, Germain M, Glenn A, Gong H, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gunji T, Gustafsson HA, Hachiya T, Hadj Henni A, Haegemann C, Haggerty JS, Hagiwara MN, Hamagaki H, Han R, Hansen AG, Harada H, Hartouni EP, Haruna K, Harvey M, Haslum E, Hasuko K, Hayano R, Heffner M, Hemmick TK, Hester T, Heuser JM, He X, Hidas P, Hiejima H, Hill JC, Hobbs R, Hohlmann M, Holmes M, Holzmann W, Homma K, Hong B, Hoover A, Horaguchi T, Hornback D, Hur MG, Ichihara T, Ikonnikov VV, Imai K, Inaba M, Inoue Y, Inuzuka M, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Jacak BV, Jia J, Jin J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kamin J, Kaneta M, Kang JH, Kanou H, Katou K, Kawabata T, Kawagishi T, Kawall D, Kazantsev AV, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim E, Kim GB, Kim HJ, Kim YS, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klay J, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Kohara R, Komkov B, Konno M, Kotchetkov D, Kozlov A, Král A, Kravitz A, Kroon PJ, Kubart J, Kuberg CH, Kunde GJ, Kurihara N, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lai YS, Lajoie JG, Lebedev A, Le Bornec Y, Leckey S, Lee DM, Lee MK, Lee T, Leitch MJ, Leite MAL, Lenzi B, Lim H, Liska T, Litvinenko A, Liu MX, Li X, Li XH, Love B, Lynch D, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Mao Y, Martinez G, Masek L, Masui H, Matathias F, Matsumoto T, McCain MC, McCumber M, McGaughey PL, Miake Y, Mikes P, Miki K, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mishra M, Mitchell JT, Mitrovski M, Mohanty AK, Morreale A, Morrison DP, Moss JM, Moukhanova TV, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagata Y, Nagle JL, Naglis M, Nakagawa I, Nakamiya Y, Nakamura T, Nakano K, Newby J, Nguyen M, Norman BE, Nyanin AS, Nystrand J, O'Brien E, Oda SX, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Oka M, Omiwade OO, Oskarsson A, Otterlund I, Ouchida M, Oyama K, Ozawa K, Pak R, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Penev V, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pierson A, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qualls JM, Qu H, Rak J, Rakotozafindrabe A, Ravinovich I, Read KF, Rembeczki S, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rukoyatkin P, Rykov VL, Ryu SS, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Sakata H, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Seele J, Seidl R, Semenov V, Seto R, Sharma D, Shea TK, Shein I, Shevel A, Shibata TA, Shigaki K, Shimomura M, Shohjoh T, Shoji K, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh CP, Singh V, Skutnik S, Slunecka M, Smith WC, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sullivan JP, Sziklai J, Tabaru T, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Toia A, Tojo J, Tomásek L, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tuli SK, Tydesjö H, Tyurin N, Uam TJ, Vale C, Valle H, vanHecke HW, Velkovska J, Velkovsky M, Vertesi R, Veszprémi V, Vinogradov AA, Virius M, Volkov MA, Vrba V, Vznuzdaev E, Wagner M, Walker D, Wang XR, Watanabe Y, Wessels J, White SN, Willis N, Winter D, Wohn FK, Woody CL, Wysocki M, Xie W, Yamaguchi YL, Yanovich A, Yasin Z, Ying J, Yokkaichi S, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zhou S, Zimányi J, Zolin L, Zong X. System size and energy dependence of jet-induced hadron pair correlation shapes in Cu+Cu and Au+Au collisions at square root sNN=200 and 62.4 GeV. Phys Rev Lett 2007; 98:232302. [PMID: 17677902 DOI: 10.1103/physrevlett.98.232302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2006] [Indexed: 05/16/2023]
Abstract
We present azimuthal angle correlations of intermediate transverse momentum (1-4 GeV/c) hadrons from dijets in Cu+Cu and Au+Au collisions at square root sNN=62.4 and 200 GeV. The away-side dijet induced azimuthal correlation is broadened, non-Gaussian, and peaked away from Delta phi=pi in central and semicentral collisions in all the systems. The broadening and peak location are found to depend upon the number of participants in the collision, but not on the collision energy or beam nuclei. These results are consistent with sound or shock wave models, but pose challenges to Cherenkov gluon radiation models.
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Affiliation(s)
- A Adare
- University of Colorado, Boulder, Colorado 80309, USA
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Adare A, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Bataineh H, Alexander J, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Asai J, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Baksay G, Baksay L, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Bennett R, Berdnikov Y, Bickley AA, Boissevain JG, Borel H, Boyle K, Brooks ML, Buesching H, Bumazhnov V, Bunce G, Butsyk S, Campbell S, Chang BS, Charvet JL, Chernichenko S, Chiba J, Chi CY, Chiu M, Choi IJ, Chujo T, Chung P, Churyn A, Cianciolo V, Cleven CR, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Dahms T, Das K, David G, Deaton MB, Dehmelt K, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dietzsch O, Dion A, Donadelli M, Drapier O, Drees A, Dubey AK, Durum A, Dzhordzhadze V, Efremenko YV, Egdemir J, Ellinghaus F, Emam WS, Enokizono A, En'yo H, Esumi S, Eyser KO, Fields DE, Finger M, Finger M, Fleuret F, Fokin SL, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fujiwara K, Fukao Y, Fusayasu T, Gadrat S, Garishvili I, Glenn A, Gong H, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gunji T, Gustafsson HA, Hachiya T, Hadj Henni A, Haegemann C, Haggerty JS, Hamagaki H, Han R, Harada H, Hartouni EP, Haruna K, Haslum E, Hayano R, Heffner M, Hemmick TK, Hester T, He X, Hiejima H, Hill JC, Hobbs R, Hohlmann M, Holzmann W, Homma K, Hong B, Horaguchi T, Hornback D, Ichihara T, Imai K, Inaba M, Inoue Y, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Jacak BV, Jia J, Jin J, Jinnouchi O, Johnson BM, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kamin J, Kaneta M, Kang JH, Kanou H, Kawall D, Kazantsev AV, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim E, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klay J, Klein-Boesing C, Kochenda L, Kochetkov V, Komkov B, Konno M, Kotchetkov D, Kozlov A, Král A, Kravitz A, Kubart J, Kunde GJ, Kurihara N, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lai YS, Lajoie JG, Lebedev A, Lee DM, Lee MK, Lee T, Leitch MJ, Leite MAL, Lenzi B, Liska T, Litvinenko A, Liu MX, Li X, Love B, Lynch D, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Mao Y, Masek L, Masui H, Matathias F, McCumber M, McGaughey PL, Miake Y, Mikes P, Miki K, Miller TE, Milov A, Mioduszewski S, Mishra M, Mitchell JT, Mitrovski M, Morreale A, Morrison DP, Moukhanova TV, Mukhopadhyay D, Murata J, Nagamiya S, Nagata Y, Nagle JL, Naglis M, Nakagawa I, Nakamiya Y, Nakamura T, Nakano K, Newby J, Nguyen M, Norman BE, Nyanin AS, O'Brien E, Oda SX, Ogilvie CA, Ohnishi H, Okada H, Okada K, Oka M, Omiwade OO, Oskarsson A, Ouchida M, Ozawa K, Pak R, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pinkenburg C, Purschke ML, Purwar AK, Qu H, Rak J, Rakotozafindrabe A, Ravinovich I, Read KF, Rembeczki S, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rukoyatkin P, Rykov VL, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Sakata H, Samsonov V, Sato S, Sawada S, Seele J, Seidl R, Semenov V, Seto R, Sharma D, Shein I, Shevel A, Shibata TA, Shigaki K, Shimomura M, Shoji K, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh CP, Singh V, Skutnik S, Slunecka M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sziklai J, Tabaru T, Takagi S, Takagui EM, Taketani A, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Toia A, Tojo J, Tomásek L, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Vale C, Valle H, van Hecke HW, Velkovska J, Vertesi R, Vinogradov AA, Virius M, Vrba V, Vznuzdaev E, Wagner M, Walker D, Wang XR, Watanabe Y, Wessels J, White SN, Winter D, Woody CL, Wysocki M, Xie W, Yamaguchi Y, Yanovich A, Yasin Z, Ying J, Yokkaichi S, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zhou S, Zimányi J, Zolin L. J/psi production versus transverse momentum and rapidity in p+p collisions at square root s=200 GeV. Phys Rev Lett 2007; 98:232002. [PMID: 17677900 DOI: 10.1103/physrevlett.98.232002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2006] [Indexed: 05/16/2023]
Abstract
J/psi production in p+p collisions at square root s=200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over a rapidity range of -2.2<y<2.2 and a transverse momentum range of 0<pT<9 GeV/c. The size of the present data set allows a detailed measurement of both the pT and the rapidity distributions and is sufficient to constrain production models. The total cross section times the branching ratio is Bll sigma pp J/psi=178+/-3stat+/-53sys+/-18norm nb.
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Affiliation(s)
- A Adare
- University of Colorado, Boulder, Colorado 80309, USA
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Adare A, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Bataineh H, Alexander J, Al-Jamel A, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Asai J, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Baksay G, Baksay L, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bennett R, Berdnikov Y, Bickley AA, Bjorndal MT, Boissevain JG, Borel H, Boyle K, Brooks ML, Brown DS, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Campbell S, Chai JS, Chang BS, Charvet JL, Chernichenko S, Chiba J, Chi CY, Chiu M, Choi IJ, Chujo T, Chung P, Churyn A, Cianciolo V, Cleven CR, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Dahms T, Das K, David G, Deaton MB, Dehmelt K, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dietzsch O, Dion A, Donadelli M, Drachenberg JL, Drapier O, Drees A, Dubey AK, Durum A, Dzhordzhadze V, Efremenko YV, Egdemir J, Ellinghaus F, Emam WS, Enokizono A, En'yo H, Espagnon B, Esumi S, Eyser KO, Fields DE, Finger M, Fleuret F, Fokin SL, Forestier B, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fujiwara K, Fukao Y, Fung SY, Fusayasu T, Gadrat S, Garishvili I, Gastineau F, Germain M, Glenn A, Gong H, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gunji T, Gustafsson HA, Hachiya T, Hadj Henni A, Haegemann C, Haggerty JS, Hagiwara MN, Hamagaki H, Han R, Harada H, Hartouni EP, Haruna K, Harvey M, Haslum E, Hasuko K, Hayano R, Heffner M, Hemmick TK, Hester T, Heuser JM, He X, Hiejima H, Hill JC, Hobbs R, Hohlmann M, Holmes M, Holzmann W, Homma K, Hong B, Horaguchi T, Hornback D, Hur MG, Ichihara T, Imai K, Inaba M, Inoue Y, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Jacak BV, Jia J, Jin J, Jinnouchi O, Johnson BM, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kamin J, Kaneta M, Kang JH, Kanou H, Kawagishi T, Kawall D, Kazantsev AV, Kelly S, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim E, Kim YS, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klay J, Klein-Boesing C, Kochenda L, Kochetkov V, Komkov B, Konno M, Kotchetkov D, Kozlov A, Král A, Kravitz A, Kroon PJ, Kubart J, Kunde GJ, Kurihara N, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lai YS, Lajoie JG, Lebedev A, Le Bornec Y, Leckey S, Lee DM, Lee MK, Lee T, Leitch MJ, Leite MAL, Lenzi B, Lim H, Liska T, Litvinenko A, Liu MX, Li X, Li XH, Love B, Lynch D, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Mao Y, Masek L, Masui H, Matathias F, McCain MC, McCumber M, McGaughey PL, Miake Y, Mikes P, Miki K, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mishra M, Mitchell JT, Mitrovski M, Morreale A, Morrison DP, Moss JM, Moukhanova TV, Mukhopadhyay D, Murata J, Nagamiya S, Nagata Y, Nagle JL, Naglis M, Nakagawa I, Nakamiya Y, Nakamura T, Nakano K, Newby J, Nguyen M, Norman BE, Nyanin AS, Nystrand J, O'Brien E, Oda SX, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Oka M, Omiwade OO, Oskarsson A, Otterlund I, Ouchida M, Ozawa K, Pak R, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qu H, Rak J, Rakotozafindrabe A, Ravinovich I, Read KF, Rembeczki S, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rukoyatkin P, Rykov VL, Ryu SS, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Sakata H, Samsonov V, Sato HD, Sato S, Sawada S, Seele J, Seidl R, Semenov V, Seto R, Sharma D, Shea TK, Shein I, Shevel A, Shibata TA, Shigaki K, Shimomura M, Shohjoh T, Shoji K, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh CP, Singh V, Skutnik S, Slunecka M, Smith WC, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sullivan JP, Sziklai J, Tabaru T, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Toia A, Tojo J, Tomásek L, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tuli SK, Tydesjö H, Tyurin N, Vale C, Valle H, van Hecke HW, Velkovska J, Vertesi R, Vinogradov AA, Virius M, Vrba V, Vznuzdaev E, Wagner M, Walker D, Wang XR, Watanabe Y, Wessels J, White SN, Willis N, Winter D, Woody CL, Wysocki M, Xie W, Yamaguchi Y, Yanovich A, Yasin Z, Ying J, Yokkaichi S, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zhou S, Zimányi J, Zolin L. J/psi production versus centrality, transverse momentum, and rapidity in Au+Au collisions at square root sNN=200 GeV. Phys Rev Lett 2007; 98:232301. [PMID: 17677901 DOI: 10.1103/physrevlett.98.232301] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2006] [Indexed: 05/16/2023]
Abstract
The PHENIX experiment at the BNL Relativistic Heavy Ion Collider (RHIC) has measured J/psi production for rapidities -2.2<y<2.2 in Au+Au collisions at square root sNN=200 GeV. The J/psi invariant yield and nuclear modification factor RAA as a function of centrality, transverse momentum, and rapidity are reported. A suppression of J/psi relative to binary collision scaling of proton-proton reaction yields is observed. Models which describe the lower energy J/psi data at the CERN Super Proton Synchrotron invoking only J/psi destruction based on the local medium density predict a significantly larger suppression at RHIC and more suppression at midrapidity than at forward rapidity. Both trends are contradicted by our data.
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Affiliation(s)
- A Adare
- University of Colorado, Boulder, Colorado 80309, USA
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Adare A, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Bataineh H, Alexander J, Al-Jamel A, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Asai J, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Baksay G, Baksay L, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bennett R, Berdnikov Y, Bickley AA, Bjorndal MT, Boissevain JG, Borel H, Boyle K, Brooks ML, Brown DS, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Campbell S, Chai JS, Chang BS, Charvet JL, Chernichenko S, Chiba J, Chi CY, Chiu M, Choi IJ, Chujo T, Chung P, Churyn A, Cianciolo V, Cleven CR, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Dahms T, Das K, David G, Deaton MB, Dehmelt K, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dietzsch O, Dion A, Donadelli M, Drachenberg JL, Drapier O, Drees A, Dubey AK, Durum A, Dzhordzhadze V, Efremenko YV, Egdemir J, Ellinghaus F, Emam WS, Enokizono A, En'yo H, Espagnon B, Esumi S, Eyser KO, Fields DE, Finger M, Finger M, Fleuret F, Fokin SL, Forestier B, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fujiwara K, Fukao Y, Fung SY, Fusayasu T, Gadrat S, Garishvili I, Gastineau F, Germain M, Glenn A, Gong H, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gunji T, Gustafsson HA, Hachiya T, Hadj Henni A, Haegemann C, Haggerty JS, Hagiwara MN, Hamagaki H, Han R, Harada H, Hartouni EP, Haruna K, Harvey M, Haslum E, Hasuko K, Hayano R, Heffner M, Hemmick TK, Hester T, Heuser JM, He X, Hiejima H, Hill JC, Hobbs R, Hohlmann M, Holmes M, Holzmann W, Homma K, Hong B, Horaguchi T, Hornback D, Hur MG, Ichihara T, Imai K, Inaba M, Inoue Y, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Jacak BV, Jia J, Jin J, Jinnouchi O, Johnson BM, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kamin J, Kaneta M, Kang JH, Kano H, Kanou H, Kawagishi T, Kawall D, Kazantsev AV, Kelly S, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim E, Kim YS, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klay J, Klein-Boesing C, Kochenda L, Kochetkov V, Komkov B, Konno M, Kotchetkov D, Kozlov A, Král A, Kravitz A, Kroon PJ, Kubart J, Kunde GJ, Kurihara N, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lai YS, Lajoie JG, Lebedev A, Le Bornec Y, Leckey S, Lee DM, Lee MK, Lee T, Leitch MJ, Leite MAL, Lenzi B, Lim H, Liska T, Litvinenko A, Liu MX, Li X, Li XH, Love B, Lynch D, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Mao Y, Masek L, Masui H, Matathias F, McCain MC, McCumber M, McGaughey PL, Miake Y, Mikes P, Miki K, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mishra M, Mitchell JT, Mitrovski M, Morreale A, Morrison DP, Moss JM, Moukhanova TV, Mukhopadhyay D, Murata J, Nagamiya S, Nagata Y, Nagle JL, Naglis M, Nakagawa I, Nakamiya Y, Nakamura T, Nakano K, Newby J, Nguyen M, Norman BE, Nyanin AS, Nystrand J, O'Brien E, Oda SX, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Oka M, Omiwade OO, Oskarsson A, Otterlund I, Ouchida M, Ozawa K, Pak R, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qu H, Rak J, Rakotozafindrabe A, Ravinovich I, Read KF, Rembeczki S, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rukoyatkin P, Rykov VL, Ryu SS, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Sakata H, Samsonov V, Sato HD, Sato S, Sawada S, Seele J, Seidl R, Semenov V, Seto R, Sharma D, Shea TK, Shein I, Shevel A, Shibata TA, Shigaki K, Shimomura M, Shohjoh T, Shoji K, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh CP, Singh V, Skutnik S, Slunecka M, Smith WC, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sullivan JP, Sziklai J, Tabaru T, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Toia A, Tojo J, Tomásek L, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tuli SK, Tydesjö H, Tyurin N, Vale C, Valle H, van Hecke HW, Velkovska J, Vertesi R, Vinogradov AA, Virius M, Vrba V, Vznuzdaev E, Wagner M, Walker D, Wang XR, Watanabe Y, Wessels J, White SN, Willis N, Winter D, Woody CL, Wysocki M, Xie W, Yamaguchi YL, Yanovich A, Yasin Z, Ying J, Yokkaichi S, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zhou S, Zimányi J, Zolin L. Scaling properties of azimuthal anisotropy in Au+Au and Cu+Cu Collisions at sqrt[s NN]=200 GeV. Phys Rev Lett 2007; 98:162301. [PMID: 17501413 DOI: 10.1103/physrevlett.98.162301] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2006] [Indexed: 05/15/2023]
Abstract
Differential measurements of elliptic flow (v2) for Au+Au and Cu+Cu collisions at sqrt[sNN]=200 GeV are used to test and validate predictions from perfect fluid hydrodynamics for scaling of v2 with eccentricity, system size, and transverse kinetic energy (KE T). For KE T identical with mT-m up to approximately 1 GeV the scaling is compatible with hydrodynamic expansion of a thermalized fluid. For large values of KE T mesons and baryons scale separately. Quark number scaling reveals a universal scaling of v2 for both mesons and baryons over the full KE T range for Au+Au. For Au+Au and Cu+Cu the scaling is more pronounced in terms of KE T, rather than transverse momentum.
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Affiliation(s)
- A Adare
- University of Colorado, Boulder, Colorado 80309, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Chung P, Cianciolo V, Cobigo Y, Cole BA, Constantin P, Csanád M, Csörgo T, d'Enterria D, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, Chenawi KE, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Perdekamp MG, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, Hayashi N, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nagy M, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Evidence for a long-range component in the pion emission source in Au+Au collisions at sqrt sNN=200 GeV. Phys Rev Lett 2007; 98:132301. [PMID: 17501193 DOI: 10.1103/physrevlett.98.132301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2006] [Indexed: 05/15/2023]
Abstract
Emission source functions are extracted from correlation functions constructed from charged pions produced at midrapidity in Au+Au collisions at sqrt[s(NN)]=200 GeV. The source parameters extracted from these functions at low k(T) give first indications of a long tail for the pion emission source. The source extension cannot be explained solely by simple kinematic considerations. The possible role of a halo of secondary pions from resonance emissions is explored.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Jamel A, Alexander J, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Averbeck R, Awes TC, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bjorndal MT, Boissevain JG, Borel H, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Cussonneau JP, d'Enterria D, Das K, David G, Deák F, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drachenberg JL, Drapier O, Drees A, Durum A, Dutta D, Dzhordzhadze V, Efremenko YV, En'yo H, Espagnon B, Esumi S, Fields DE, Finck C, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fukao Y, Fung SY, Gadrat S, Germain M, Glenn A, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Perdekamp MG, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hasuko K, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hidas P, Hiejima H, Hill JC, Hobbs R, Holzmann W, Homma K, Hong B, Hoover A, Horaguchi T, Ichihara T, Ikonnikov VV, Imai K, Inaba M, Inuzuka M, Isenhower D, Isenhower L, Ishihara M, Issah M, Isupov A, Jacak BV, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang JH, Katou K, Kawabata T, Kazantsev AV, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim E, Kim GB, Kim HJ, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Kohara R, Komkov B, Konno M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kunde GJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Le Bornec Y, Lebedev A, Leckey S, Lee DM, Leitch MJ, Leite MAL, Li XH, Lim H, Litvinenko A, Liu MX, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Masui H, Matathias F, Matsumoto T, McCain MC, McGaughey PL, Miake Y, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mukhopadhyay D, Muniruzzaman M, Nagamiya S, Nagle JL, Nakamura T, Newby J, Nyanin AS, Nystrand J, O'brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Penev V, Peng JC, Pereira H, Peresedov V, Pierson A, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qualls JM, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rykov VL, Ryu SS, Saito N, Sakaguchi T, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shimomura M, Sickles A, Silva CL, Silvermyr D, Sim KS, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Tojo J, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tydesjö H, Tyurin N, Uam TJ, Velkovska J, Velkovsky M, Veszprémi V, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Willis N, Wohn FK, Woody CL, Xie W, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zhou S, Zimányi J, Zolin L, Zong X, Van Hecke HW. Measurement of direct photon production in p+p collisions at sqrt[s] = 200 GeV. Phys Rev Lett 2007; 98:012002. [PMID: 17358469 DOI: 10.1103/physrevlett.98.012002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2006] [Indexed: 05/14/2023]
Abstract
Cross sections for midrapidity production of direct photons in p+p collisions at the Relativistic Heavy Ion Collider (RHIC) are reported for transverse momenta of 3 < pT < 16 GeV/c. Next-to-leading order perturbative QCD (pQCD) describes the data well for pT >5 GeV/c, where the uncertainties of the measurement and theory are comparable. We also report on the effect of requiring the photons to be isolated from parton jet energy. The observed fraction of isolated photons is well described by pQCD for pT >7 GeV/c.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, NY 11973-5000, USA
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Adare A, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Bataineh H, Alexander J, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Asai J, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Baksay G, Baksay L, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Bennett R, Berdnikov Y, Bickley AA, Boissevain JG, Borel H, Boyle K, Brooks ML, Buesching H, Bumazhnov V, Bunce G, Butsyk S, Campbell S, Chang BS, Charvet JL, Chernichenko S, Chiba J, Chi CY, Chiu M, Choi IJ, Chujo T, Chung P, Churyn A, Cianciolo V, Cleven CR, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Dahms T, Das K, David G, Deaton MB, Dehmelt K, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dietzsch O, Dion A, Donadelli M, Drapier O, Drees A, Dubey AK, Durum A, Dzhordzhadze V, Efremenko YV, Egdemir J, Ellinghaus F, Emam WS, Enokizono A, En'yo H, Esumi S, Eyser KO, Fields DE, Finger M, Fleuret F, Fokin SL, Fraenkel Z, Franz A, Frantz J, Frawley AD, Fujiwara K, Fukao Y, Fusayasu T, Gadrat S, Garishvili I, Glenn A, Gong H, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gunji T, Gustafsson HA, Hachiya T, Henni AH, Haegemann C, Haggerty JS, Hamagaki H, Han R, Harada H, Hartouni EP, Haruna K, Haslum E, Hayano R, Heffner M, Hemmick TK, Hester T, He X, Hiejima H, Hill JC, Hobbs R, Hohlmann M, Holzmann W, Homma K, Hong B, Horaguchi T, Hornback D, Ichihara T, Imai K, Inaba M, Inoue Y, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Jacak BV, Jia J, Jin J, Jinnouchi O, Johnson BM, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kamin J, Kaneta M, Kang JH, Kanou H, Kano H, Kawall D, Kazantsev AV, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim E, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klay J, Klein-Boesing C, Kochenda L, Kochetkov V, Komkov B, Konno M, Kotchetkov D, Kozlov A, Král A, Kravitz A, Kubart J, Kunde GJ, Kurihara N, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lai YS, Lajoie JG, Lebedev A, Lee DM, Lee MK, Lee T, Leitch MJ, Leite MAL, Lenzi B, Liska T, Litvinenko A, Liu MX, Li X, Love B, Lynch D, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Mao Y, Masek L, Masui H, Matathias F, McCumber M, McGaughey PL, Miake Y, Mikes P, Miki K, Miller TE, Milov A, Mioduszewski S, Mishra M, Mitchell JT, Mitrovski M, Morreale A, Morrison DP, Moukhanova TV, Mukhopadhyay D, Murata J, Nagamiya S, Nagata Y, Nagle JL, Naglis M, Nakagawa I, Nakamiya Y, Nakamura T, Nakano K, Newby J, Nguyen M, Norman BE, Nyanin AS, O'Brien E, Oda SX, Ogilvie CA, Ohnishi H, Okada H, Okada K, Oka M, Omiwade OO, Oskarsson A, Ouchida M, Ozawa K, Pak R, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pinkenburg C, Purschke ML, Purwar AK, Qu H, Rak J, Rakotozafindrabe A, Ravinovich I, Read KF, Rembeczki S, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rukoyatkin P, Rykov VL, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Sakata H, Samsonov V, Sato S, Sawada S, Seele J, Seidl R, Semenov V, Seto R, Sharma D, Shein I, Shevel A, Shibata TA, Shigaki K, Shimomura M, Shoji K, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh CP, Singh V, Skutnik S, Slunecka M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sziklai J, Tabaru T, Takagi S, Takagui EM, Taketani A, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Toia A, Tojo J, Tomásek L, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Vale C, Valle H, van Hecke HW, Velkovska J, Vertesi R, Vinogradov AA, Virius M, Vrba V, Vznuzdaev E, Wagner M, Walker D, Wang XR, Watanabe Y, Wessels J, White SN, Winter D, Woody CL, Wysocki M, Xie W, Yamaguchi Y, Yanovich A, Yasin Z, Ying J, Yokkaichi S, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zhou S, Zimányi J, Zolin L. Measurement of high-pT single electrons from heavy-flavor decays in p + p collisions at square root of s = 200 GeV. Phys Rev Lett 2006; 97:252002. [PMID: 17280343 DOI: 10.1103/physrevlett.97.252002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2006] [Indexed: 05/13/2023]
Abstract
The momentum distribution of electrons from decays of heavy flavor (charm and bottom) for midrapidity absolute value of y < 0.35 in p + p collisions at square root of s = 200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over the transverse momentum range 0.3 < pT < 9 GeV/c. Two independent methods have been used to determine the heavy-flavor yields, and the results are in good agreement with each other. A fixed-order-plus-next-to-leading-log perturbative QCD calculation agrees with the data within the theoretical and experimental uncertainties, with the data/theory ratio of 1.71+/-0.02stat+/-0.18sys for 0.3 < pT < 9 GeV/c. The total charm production cross section at this energy has also been deduced to be sigma cc = 567+/-57stat+/-193sys microb.
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Affiliation(s)
- A Adare
- University of Colorado, Boulder, Colorado 80309, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria D, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, Hayashi N, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Dense-medium modifications to jet-induced hadron pair distributions in Au+Au collisions at sqrt s NN=200 GeV. Phys Rev Lett 2006; 97:052301. [PMID: 17026095 DOI: 10.1103/physrevlett.97.052301] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2005] [Indexed: 05/12/2023]
Abstract
Azimuthal correlations of jet-induced high-p(T) charged hadron pairs are studied at midrapidity in Au+Au collisions at sqrt[s(NN)]=200 GeV. The distribution of jet-associated partner hadrons (1.0<p(T)<2.5 GeV/c) per trigger hadron (2.5<p(T)<4.0 GeV/c) is found to vary with collision centrality, in both shape and yield, indicating a significant effect of the nuclear collision medium on the jet fragmentation process.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Cardoso JA, Barbosa C, Fernandes S, Silva CL, Pinho A. Reducing subjectivity in the evaluation of pre-clinical dental preparations for fixed prosthodontics using the Kavo PrepAssistant. Eur J Dent Educ 2006; 10:149-56. [PMID: 16842589 DOI: 10.1111/j.1600-0579.2006.00409.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The evaluation of pre-clinical technical achievement in fixed prosthodontics cannot be objective when using visual examination of dental preparations. This is, however, still the main method used in dental schools. The present study introduces a new method, based on a mathematical formula, to reduce the problem. The idea emerged when using the Kavo PrepAssistant system (software version 1.05). This system is a 3D-scanner with software that can quantify geometrical differences between an instructor and student dental preparation in model teeth. Therefore, a mathematical formula was created, integrating selected clinically relevant geometric characteristics of dental preparations measured by the system. In this new formula, 70% of the evaluation parameters were computer analysed, whilst 30% were visually evaluated. This new method was compared with the traditional visual evaluation system during a pre-clinical practical examination, with the participation of 25 students. Using both methods to evaluate the 25 preparations, results showed similar grading for both methods (K-S test = 0.16; P < 0.05). Although this method does not provide overall clinical evaluation of student performance these results suggest that it can be helpful accessing technical achievement. In this method, the student has the guarantee that 70% of his/her grade results from an objective computer evaluation, with the possibility to visualise the mistakes with the software. It also reduces problems related to the calibration between different examiners. The Kavo PrepAssistant is a powerful tool in pre-clinical teaching, but has some drawbacks. It has to be developed towards the actual needs of pre-clinical departments, in order to achieve its full potential, as described in this study.
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Affiliation(s)
- J A Cardoso
- Department of Fixed Prosthodontics, Faculty of Dental Medicine, Oporto University, Oporto, Portugal.
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Silva CL, Nunes SCC, Eusébio MES, Pais AACC, Sousa JJS. Thermal Behaviour of Human Stratum Corneum. Skin Pharmacol Physiol 2006; 19:132-9. [PMID: 16612140 DOI: 10.1159/000092593] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2005] [Accepted: 07/21/2005] [Indexed: 11/19/2022]
Abstract
PURPOSE To use high-speed differential scanning calorimetry (DSC) in the identification of transitions in human stratum corneum (SC). Several scanning rates (100 degrees C/min to 400 degrees C/min) are used. RESULTS Eight transitions from 0 to 120 degrees C are detected in a significant number of samples. Most of these transitions have already been identified in previous studies, but have been labeled considering essentially that only four are present. Results also indicate some degree of reversibility for transitions occurring at temperatures above 90 degrees C. Dehydrated SC samples displayed slightly more defined transition peaks and a less frequent presence of the transitions below 50 degrees C. In turn, the delipidised SC matrix showed two major endothermic signals, centered around 55 and 100 degrees C, in conjunction with other much less marked features. CONCLUSIONS The interpretation of DSC traces in terms of four main transition temperatures must be complemented having in mind the occurrence of other transitions, some of them at physiological temperatures. This work further suggests that transitions at temperatures above 90 degrees C may to a large degree be associated to lipids, while transition at approx. 55 degrees C is probably related to lipids covalently linked to proteins, as previously suggested.
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Affiliation(s)
- C L Silva
- Faculdade de Farmácia, Universidade de Coimbra, Coimbra, Portugal
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Jamel A, Alexander J, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Averbeck R, Awes TC, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bjorndal MT, Boissevain JG, Borel H, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Cussonneau JP, d'Enterria D, Das K, David G, Deák F, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drachenberg JL, Drapier O, Drees A, Durum A, Dutta D, Dzhordzhadze V, Efremenko YV, En'yo H, Espagnon B, Esumi S, Fields DE, Finck C, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fukao Y, Fung SY, Gadrat S, Germain M, Glenn A, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Perdekamp MG, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hasuko K, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hidas P, Hiejima H, Hill JC, Hobbs R, Holzmann W, Homma K, Hong B, Hoover A, Horaguchi T, Ichihara T, Ikonnikov VV, Imai K, Inaba M, Inuzuka M, Isenhower D, Isenhower L, Ishihara M, Issah M, Isupov A, Jacak BV, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang JH, Katou K, Kawabata T, Kazantsev AV, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim E, Kim GB, Kim HJ, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Kohara R, Komkov B, Konno M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kunde GJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Le Bornec Y, Lebedev A, Leckey S, Lee DM, Leitch MJ, Leite MAL, Li XH, Lim H, Litvinenko A, Liu MX, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Masui H, Matathias F, Matsumoto T, McCain MC, McGaughey PL, Miake Y, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mukhopadhyay D, Muniruzzaman M, Nagamiya S, Nagle JL, Nakamura T, Newby J, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Penev V, Peng JC, Pereira H, Peresedov V, Pierson A, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qualls JM, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rykov VL, Ryu SS, Saito N, Sakaguchi T, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shimomura M, Sickles A, Silva CL, Silvermyr D, Sim KS, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Tojo J, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tydesjö H, Tyurin N, Uam TJ, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Willis N, Wohn FK, Woody CL, Xie W, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zimányi J, Zolin L, Zong X. Azimuthal angle correlations for rapidity separated Hadron pairs in d+Au collisions at square root of sNN=200 GeV. Phys Rev Lett 2006; 96:222301. [PMID: 16803304 DOI: 10.1103/physrevlett.96.222301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2006] [Indexed: 05/10/2023]
Abstract
Deuteron-gold (d+Au) collisions at the Relativistic Heavy Ion Collider provide ideal platforms for testing QCD theories in dense nuclear matter at high energy. In particular, models suggesting strong saturation effects for partons carrying small nucleon momentum fraction (x) predict modifications to jet production at forward rapidity (deuteron-going direction) in d+Au collisions. We report on two-particle azimuthal angle correlations between charged hadrons at forward/backward (deuteron/gold going direction) rapidity and charged hadrons at midrapidity in d+Au and p+p collisions at square root of sNN=200 GeV. Jet structures observed in the correlations are quantified in terms of the conditional yield and angular width of away-side partners. The kinematic region studied here samples partons in the gold nucleus with x~0.1 to ~0.01. Within this range, we find no x dependence of the jet structure in d+Au collisions.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria D, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, Chenawi KE, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, de Cassagnac RG, Grau N, Greene SV, Perdekamp MG, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, Hayashi N, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hiejima H, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Sahlmueller B, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Common suppression pattern of eta and pi0 mesons at high transverse momentum in Au + Au collisions at square root S(NN) = 200 GeV. Phys Rev Lett 2006; 96:202301. [PMID: 16803168 DOI: 10.1103/physrevlett.96.202301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2006] [Indexed: 05/10/2023]
Abstract
Inclusive transverse momentum spectra of eta mesons have been measured within p(T) = 2-10 GeV/c at midrapidity by the PHENIX experiment in Au + Au collisions at square root S(NN) = 200 GeV. In central Au+Au the eta yields are significantly suppressed compared to peripheral Au + Au, d + Au, and p + p yields scaled by the corresponding number of nucleon-nucleon collisions. The magnitude, centrality, and p(T) dependence of the suppression is common, within errors, for eta and pi0. The ratio of eta to pi0 spectra at high p(T) amounts to 0.40 < R(eta/pi)0 < 0.48 for the three systems, in agreement with the world average measured in hadronic and nuclear reactions and, at large scaled momentum, in e+e- collisions.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Silva CL, Nunes SCC, Eusébio MES, Sousa JJS, Pais AACC. Study of human stratum corneum and extracted lipids by thermomicroscopy and DSC. Chem Phys Lipids 2006; 140:36-47. [PMID: 16480966 DOI: 10.1016/j.chemphyslip.2006.01.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2005] [Revised: 01/06/2006] [Accepted: 01/06/2006] [Indexed: 10/25/2022]
Abstract
A study on the thermal behavior of human stratum corneum and lipids is described. The use of high scanning rate DSC for both SC and extracted lipids allows the consistent determination of transition temperatures, including those of lower energy. Changes are found both at physiological and higher temperatures. There is a clear correspondence between the thermotropic behavior of these two systems. However, one of the transitions found in human SC (approximately 55 degrees C) is absent in extracted lipids and may be ascribed to those covalently-linked to corneocytes. Lipidic thermotropic behavior is clearly found above 100 degrees C, in which proteins do not play an exclusive role. Changes related to most transitions are observed directly by polarized light thermal microscopy in extracted lipids. This technique also allowed for the observation of large segregated domains in the extracted lipids. A drastic change is observed at approximately 60 degrees C, corresponding to the disruption of the lamellar structure.
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Affiliation(s)
- C L Silva
- Faculdade de Farmácia, Universidade de Coimbra, 3004-535 Coimbra, Portugal
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Coelho-Castelo AAM, Trombone AP, Rosada RS, Santos RR, Bonato VLD, Sartori A, Silva CL. Tissue distribution of a plasmid DNA encoding Hsp65 gene is dependent on the dose administered through intramuscular delivery. Genet Vaccines Ther 2006; 4:1. [PMID: 16445866 PMCID: PMC1403771 DOI: 10.1186/1479-0556-4-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2005] [Accepted: 01/30/2006] [Indexed: 11/10/2022]
Abstract
In order to assess a new strategy of DNA vaccine for a more complete understanding of its action in immune response, it is important to determine the in vivo biodistribution fate and antigen expression. In previous studies, our group focused on the prophylactic and therapeutic use of a plasmid DNA encoding the Mycobacterium leprae 65-kDa heat shock protein (Hsp65) and achieved an efficient immune response induction as well as protection against virulent M. tuberculosis challenge. In the present study, we examined in vivo tissue distribution of naked DNA-Hsp65 vaccine, the Hsp65 message, genome integration and methylation status of plasmid DNA. The DNA-Hsp65 was detectable in several tissue types, indicating that DNA-Hsp65 disseminates widely throughout the body. The biodistribution was dose-dependent. In contrast, RT-PCR detected the Hsp65 message for at least 15 days in muscle or liver tissue from immunized mice. We also analyzed the methylation status and integration of the injected plasmid DNA into the host cellular genome. The bacterial methylation pattern persisted for at least 6 months, indicating that the plasmid DNA-Hsp65 does not replicate in mammalian tissue, and Southern blot analysis showed that plasmid DNA was not integrated. These results have important implications for the use of DNA-Hsp65 vaccine in a clinical setting and open new perspectives for DNA vaccines and new considerations about the inoculation site and delivery system.
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Affiliation(s)
- AAM Coelho-Castelo
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina Universidade de São Paulo, Ribeirão Preto, SP, Brazil
- REDE-TB: Rede Brasileira de combate à tuberculose, USP, Riberiao Preto, São Paulo, Brasil
| | - AP Trombone
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina Universidade de São Paulo, Ribeirão Preto, SP, Brazil
- REDE-TB: Rede Brasileira de combate à tuberculose, USP, Riberiao Preto, São Paulo, Brasil
| | - RS Rosada
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina Universidade de São Paulo, Ribeirão Preto, SP, Brazil
- REDE-TB: Rede Brasileira de combate à tuberculose, USP, Riberiao Preto, São Paulo, Brasil
| | - RR Santos
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina Universidade de São Paulo, Ribeirão Preto, SP, Brazil
- REDE-TB: Rede Brasileira de combate à tuberculose, USP, Riberiao Preto, São Paulo, Brasil
| | - VLD Bonato
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina Universidade de São Paulo, Ribeirão Preto, SP, Brazil
- REDE-TB: Rede Brasileira de combate à tuberculose, USP, Riberiao Preto, São Paulo, Brasil
| | - A Sartori
- Instituto de Biociências, UNESP, Botucatu, São Paulo, Brasil
| | - CL Silva
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina Universidade de São Paulo, Ribeirão Preto, SP, Brazil
- REDE-TB: Rede Brasileira de combate à tuberculose, USP, Riberiao Preto, São Paulo, Brasil
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria D, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, de Cassagnac RG, Grau N, Greene SV, Perdekamp MG, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, Hayashi N, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Single electrons from heavy-flavor decays in collisions at. Phys Rev Lett 2006; 96:032001. [PMID: 16486684 DOI: 10.1103/physrevlett.96.032001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2005] [Indexed: 05/06/2023]
Abstract
The invariant differential cross section for inclusive electron production in p+p collisions at [FORMULA: SEE TEXT] has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over the transverse momentum range 0.4<or=pT<OR=5.0 GeV/c in the central rapidity region ([FORMULA: SEE TEXT]). The contribution to the inclusive electron spectrum from semileptonic decays of hadrons carrying heavy flavor, i.e., charm quarks or, at high , bottom quarks, is determined via three independent methods. The resulting electron spectrum from heavy-flavor decays is compared to recent leading and next-to-leading order perturbative QCD calculations. The total cross section of charm quark-antiquark pair production is determined to be [FORMULA: SEE TEXT].
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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73
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria D, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, de Cassagnac RG, Grau N, Greene SV, Perdekamp MG, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, Hayashi N, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kaneta M, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Measurement of identified and inclusive photon second-harmonic parameter and implications for direct photon production in [FORMULA: SEE TEXT] Au+Au. Phys Rev Lett 2006; 96:032302. [PMID: 16486688 DOI: 10.1103/physrevlett.96.032302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2005] [Indexed: 05/06/2023]
Abstract
The azimuthal distribution of identified pi0 and inclusive photons has been measured in [FORMULA: SEE TEXT] Au+Au collisions with the PHENIX experiment at the Relativistic Heavy-Ion Collider (RHIC). The second-harmonic parameter (nu2) was measured to describe the observed anisotropy of the azimuthal distribution. The measured inclusive photon is consistent with the value expected for the photons from hadron decay and is also consistent with the lack of direct photon signal over the measured pT range 1-6 GeV/c. An attempt is made to extract nu2 of direct photons.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria D, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, Egdemir J, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, Hayashi N, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Nuclear modification of electron spectra and implications for heavy quark energy loss in Au+Au collisions at [FORMULA: SEE TEXT]. Phys Rev Lett 2006; 96:032301. [PMID: 16486687 DOI: 10.1103/physrevlett.96.032301] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2005] [Indexed: 05/06/2023]
Abstract
The PHENIX experiment has measured midrapidity ([FORMULA: SEE TEXT]) transverse momentum spectra ([FORMULA: SEE TEXT]) of electrons as a function of centrality in Au+Au collisions at [FORMULA: SEE TEXT]. Contributions from photon conversions and from light hadron decays, mainly Dalitz decays of pi0 and eta mesons, were removed. The resulting nonphotonic electron spectra are primarily due to the semileptonic decays of hadrons carrying heavy quarks. Nuclear modification factors were determined by comparison to nonphotonic electrons in p+p collisions. A significant suppression of electrons at high pT is observed in central Au+Au collisions, indicating substantial energy loss of heavy quarks.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Jamel A, Alexander J, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Atomssa ET, Averbeck R, Awes TC, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bjorndal MT, Boissevain JG, Borel H, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Cussonneau JP, d'Enterria D, Das K, David G, Deák F, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drachenberg JL, Drapier O, Drees A, Durum A, Dutta D, Dzhordzhadze V, Efremenko YV, En'yo H, Espagnon B, Esumi S, Fields DE, Finck C, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fukao Y, Fung SY, Gadrat S, Germain M, Glenn A, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hasuko K, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hidas P, Hiejima H, Hill JC, Hobbs R, Holzmann W, Homma K, Hong B, Hoover A, Horaguchi T, Ichihara T, Ikonnikov VV, Imai K, Inaba M, Inuzuka M, Isenhower D, Isenhower L, Ishihara M, Issah M, Isupov A, Jacak BV, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang JH, Katou K, Kawabata T, Kazantsev AV, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim E, Kim GB, Kim HJ, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Kohara R, Komkov B, Konno M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kunde GJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Le Bornec Y, Lebedev A, Leckey S, Lee DM, Leitch MJ, Leite MAL, Li XH, Lim H, Litvinenko A, Liu MX, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Masui H, Matathias F, Matsumoto T, McCain MC, McGaughey PL, Miake Y, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mukhopadhyay D, Muniruzzaman M, Nagamiya S, Nagle JL, Nakamura T, Newby J, Nyanin AS, Nystrand J, O'brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Penev V, Peng JC, Pereira H, Peresedov V, Pierson A, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qualls JM, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rykov VL, Ryu SS, Saito N, Sakaguchi T, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shimomura M, Sickles A, Silva CL, Silvermyr D, Sim KS, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Tojo J, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tydesjö H, Tyurin N, Uam TJ, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Willis N, Wohn FK, Woody CL, Xie W, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zimányi J, Zolin L, Zong X. J/psi production and nuclear effects for d + Au and p + p collisions at square root of S(NN) = 200 GeV. Phys Rev Lett 2006; 96:012304. [PMID: 16486446 DOI: 10.1103/physrevlett.96.012304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2005] [Indexed: 05/06/2023]
Abstract
J/psi production in d + Au and p + p collisions at square root of S(NN) = 200 GeV has been measured by the PHENIX experiment at rapidities -2.2 < y < +2.4. The cross sections and nuclear dependence of J/psi production versus rapidity, transverse momentum, and centrality are obtained and compared to lower energy p + A results and to theoretical models. The observed nuclear dependence in d + Au collisions is found to be modest, suggesting that the absorption in the final state is weak and the shadowing of the gluon distributions is small and consistent with Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-based parametrizations that fit deep-inelastic scattering and Drell-Yan data at lower energies.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria D, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drapier O, Drees A, Drees KA, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, Hayashi N, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Measurement of transverse single-spin asymmetries for midrapidity production of neutral pions and charged hadrons in polarized p + p collisions at square root(s) = 200 GeV. Phys Rev Lett 2005; 95:202001. [PMID: 16384048 DOI: 10.1103/physrevlett.95.202001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2005] [Indexed: 05/05/2023]
Abstract
Transverse single-spin asymmetries to probe the transverse-spin structure of the proton have been measured for neutral pions and nonidentified charged hadrons from polarized proton-proton collisions at midrapidity and square root(s) = 200 GeV. The data cover a transverse momentum (pT) range 1.0-5.0 GeV/c for neutral pions and 0.5-5.0 GeV/c for charged hadrons, at a Feynman-x value of approximately zero. The asymmetries seen in this previously unexplored kinematic region are consistent with zero within errors of a few percent. In addition, the inclusive charged hadron cross section at midrapidity from 0.5 < pT < 7.0 GeV/c is presented and compared to next-to-leading order perturbative QCD (pQCD) calculations. Successful description of the unpolarized cross section above approximately 2 GeV/c suggests that pQCD is applicable in the interpretation of the asymmetry results in the relevant kinematic range.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Jamel A, Alexander J, Amirikas R, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Averbeck R, Awes TC, Azmoun B, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bennett R, Berdnikov Y, Bhagavatula S, Bjorndal MT, Boissevain JG, Borel H, Borenstein S, Boyle K, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Campbell S, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cleven CR, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, d'Enterria D, Dahms T, Das K, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Dion A, Drachenberg JL, Drapier O, Drees A, Drees KA, Dubey AK, du Rietz R, Durum A, Dutta D, Dzhordzhadze V, Efremenko YV, Egdemir J, El Chenawi K, Enokizono A, En'yo H, Espagnon B, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Forestier B, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fukao Y, Fung SY, Gadrat S, Garpman S, Gastineau F, Germain M, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Perdekamp MG, Gunji T, Guryn W, Gustafsson HA, Hachiya T, Henni AH, Haggerty JS, Hagiwara MN, Hamagaki H, Hansen AG, Harada H, Hartouni EP, Haruna K, Harvey M, Haslum E, Hasuko K, Hayano R, Hayashi N, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hiejima H, Hill JC, Hobbs R, Holmes M, Holzmann W, Homma K, Hong B, Hoover A, Horaguchi T, Hur HM, Ichihara T, Ikonnikov VV, Imai K, Inaba M, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jin J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang JH, Kapoor SS, Katou K, Kawagishi T, Kazantsev AV, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kim YS, Kinney E, Kinnison WW, Kiss A, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Komkov B, Konno M, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kunde GJ, Kurihara N, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Le Bornec Y, Lebedev A, Leckey S, Lee DM, Lee MK, Lee S, Leitch MJ, Leite MAL, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McCain MC, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Moukhanova TV, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagata Y, Nagle JL, Naglis M, Nakamura T, Nandi BK, Nara M, Newby J, Nguyen M, Nilsson P, Norman B, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Omiwade OO, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Parmar A, Pate SF, Pei H, Peitzmann T, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Qu H, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rukoyatkin P, Rykov VL, Ryu SS, Sadler ME, Sahlmueller B, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Sharma D, Shaw MR, Shea TK, Shein I, Shibata TA, Shigaki K, Shiina T, Shimomura M, Shohjoh T, Shoji K, Sickles A, Silva CL, Silvermyr D, Sim KS, Simon-Gillo J, Singh CP, Singh V, Sivertz M, Skutnik S, Smith WC, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sullivan JP, Sziklai J, Tabaru T, Takagi S, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Tepe JD, Thomas TL, Togawa M, Tojo J, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, Valle H, van Hecke HW, Velkovska J, Velkovsky M, Vertesi R, Veszprémi V, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wagner M, Wang XR, Watanabe Y, Wessels J, White SN, Willis N, Winter D, Wohn FK, Woody CL, Wysocki M, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudkte O, Zhang C, Zhou S, Zhou SJ, Zimányi J, Zolin L. Saturation of azimuthal anisotropy in Au + Au collisions at (square root)s(NN) = 62-200 GeV. Phys Rev Lett 2005; 94:232302. [PMID: 16090463 DOI: 10.1103/physrevlett.94.232302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2004] [Indexed: 05/03/2023]
Abstract
New measurements are presented for charged hadron azimuthal correlations at midrapidity in Au+Au collisions at (square root)s(NN) = 62.4 and 200 GeV. They are compared to earlier measurements obtained at (square root)s(NN) = 130 GeV and in Pb + Pb collisions at (square root)s(NN) = 17.2 GeV. Sizeable anisotropies are observed with centrality and transverse momentum (pT) dependence characteristic of elliptic flow (upsilon2). For a broad range of centralities, the observed magnitudes and trends of the differential anisotropy, upsilon2(pT), change very little over the collision energy range (square root)s(NN) = 62-200 GeV, indicating saturation of the excitation function for upsilon2 at these energies. Such a saturation may be indicative of the dominance of a very soft equation of state for (square root)s(NN) approximately 60-200 GeV.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria D, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Perdekamp MG, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, Hayashi N, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Centrality dependence of direct photon production in (square root)S(NN) = 200 GeV Au + Au collisions. Phys Rev Lett 2005; 94:232301. [PMID: 16090462 DOI: 10.1103/physrevlett.94.232301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2005] [Indexed: 05/03/2023]
Abstract
The first measurement of direct photons in Au + Au collisions at (square root)S(NN) = 200 GeV is presented. The direct photon signal is extracted as a function of the Au + Au collision centrality and compared to next-to-leading order perturbative quantum chromodynamics calculations. The direct photon yield is shown to scale with the number of nucleon-nucleon collisions for all centralities.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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De Souza AO, Pedrosa MTC, Alderete JB, Cruz AF, Prado MAF, Alves RB, Silva CL. Cytotoxicity, antitumoral and antimycobacterial activity of tetrazole and oxadiazole derivatives. Pharmazie 2005; 60:396-7. [PMID: 15918593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
In this study, the antimycobacterial activity of mono and di-substituted tetrazole and oxadiazole derivatives and their precursors was assayed on Mycobacterium tuberculosis H37Rv, and cytotoxicity was evaluated on J774 macrophages and on tumoral cell lines. Structure Activity Relationship (SAR) analysis was performed using Principal Component Analysis (PCA) to determine the relationship between these compounds and their biological activities.
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Affiliation(s)
- A O De Souza
- Department of Biochemistry and Immunology, School of Medicine of Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, S.P., Brazil.
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Silva CL, Bonato VLD, Coelho-Castelo AAM, De Souza AO, Santos SA, Lima KM, Faccioli LH, Rodrigues JM. Immunotherapy with plasmid DNA encoding mycobacterial hsp65 in association with chemotherapy is a more rapid and efficient form of treatment for tuberculosis in mice. Gene Ther 2005; 12:281-7. [PMID: 15526006 DOI: 10.1038/sj.gt.3302418] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Tuberculosis (TB) remains a threat for public health, killing around 3 million people a year. Despite the fact that most cases can be cured with antibiotics, the treatment is long and patients relapse if chemotherapy is not continued for at least 6 months. Thus, a better characterization of the working principles of the immune system in TB and identification of new immunotherapeutic products for the development of shorter regimens of treatment are essential to achieve an effective management of this disease. In the present work, we demonstrate that immunotherapy with a plasmid DNA encoding the Mycobacterium leprae 65 kDa heat-shock protein (hsp65) in order to boost the efficiency of the immune system, is a valuable adjunct to antibacterial chemotherapy to shorten the duration of treatment, improve the treatment of latent TB infection and be effective against multidrug-resistant bacilli (MDR-TB). We also showed that the use of DNA-hsp65 alone or in combination with other drugs influence the pathway of the immune response or other types of inflammatory responses and should augment our ability to alter the course of immune response/inflammation as needed, evidencing an important target for immunization or drug intervention.
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Affiliation(s)
- C L Silva
- REDE-TB, Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria D, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, Hayashi N, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Deuteron and antideuteron production in Au+Au collisions at square root of s(NN)=200 GeV. Phys Rev Lett 2005; 94:122302. [PMID: 15903909 DOI: 10.1103/physrevlett.94.122302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2004] [Indexed: 05/02/2023]
Abstract
The production of deuterons and antideuterons in the transverse momentum range 1.1<p(T)<4.3 GeV/c at midrapidity in Au+Au collisions at square root of s(NN)=200 GeV has been studied by the PHENIX experiment at RHIC. A coalescence analysis, comparing the deuteron and antideuteron spectra with that of proton and antiproton, has been performed. The coalescence probability is equal for both deuterons and antideuterons and it increases as a function of p(T), which is consistent with an expanding collision zone. Comparing (anti)proton yields, p /p=0.73+/-0.01, with (anti)deuteron yields, d /d=0.47+/-0.03, we estimate that n /n=0.64+/-0.04. The nucleon phase space density is estimated from the coalescence measurement.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, Hayashi N, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Centrality dependence of charm production from a measurement of single electrons in Au+Au collisions at sqrt[s(NN)]=200 GeV. Phys Rev Lett 2005; 94:082301. [PMID: 15783878 DOI: 10.1103/physrevlett.94.082301] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2004] [Indexed: 05/24/2023]
Abstract
The PHENIX experiment has measured midrapidity transverse momentum spectra (0.4<p(T)<4.0 GeV/c) of single electrons as a function of centrality in Au+Au collisions at sqrt[s(NN)]=200 GeV. Contributions from photon conversions and Dalitz decays of light neutral mesons are measured by introducing a thin (1.7% X0) converter into the PHENIX acceptance and are statistically removed. The subtracted nonphotonic electron spectra are primarily due to the semileptonic decays of hadrons containing heavy quarks, mainly charm at lower p(T). For all centralities, the charm production cross section is found to scale with the nuclear overlap function, T(AA). For minimum-bias collisions the charm cross section per binary collision is N(cc )/T(AA)=622+/-57(stat)+/-160(syst) microb.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Jamel A, Alexander J, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Averbeck R, Awes TC, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bjorndal MT, Boissevain JG, Borel H, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Cussonneau JP, d'Enterria D, Das K, David G, Deák F, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drachenberg JL, Drapier O, Drees A, Durum A, Dutta D, Dzhordzhadze V, Efremenko YV, En'yo H, Espagnon B, Esumi S, Fields DE, Finck C, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fukao Y, Fung SY, Gadrat S, Germain M, Glenn A, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hasuko K, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hidas P, Hiejima H, Hill JC, Hobbs R, Holzmann W, Homma K, Hong B, Hoover A, Horaguchi T, Ichihara T, Ikonnikov VV, Imai K, Inaba M, Inuzuka M, Isenhower D, Isenhower L, Ishihara M, Issah M, Isupov A, Jacak BV, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang JH, Katou K, Kawabata T, Kazantsev A, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim E, Kim GB, Kim HJ, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Kohara R, Komkov B, Konno M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kunde GJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Le Bornec Y, Lebedev A, Leckey S, Lee DM, Leitch MJ, Leite MAL, Li XH, Lim H, Litvinenko A, Liu MX, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Masui H, Matathias F, Matsumoto T, McCain MC, McGaughey PL, Miake Y, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mukhopadhyay D, Muniruzzaman M, Nagamiya S, Nagle JL, Nakamura T, Newby J, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Penev V, Peng JC, Pereira H, Peresedov V, Pierson A, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qualls JM, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rykov VL, Ryu SS, Saito N, Sakaguchi T, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shimomura M, Sickles A, Silva CL, Silvermyr D, Sim KS, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Tojo J, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tydesjö H, Tyurin N, Uam TJ, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Willis N, Wohn FK, Woody CL, Xie W, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zimányi J, Zolin L, Zong X. Nuclear modification factors for hadrons at forward and backward rapidities in deuteron-gold collisions at sqrt[s(NN)]=200 GeV. Phys Rev Lett 2005; 94:082302. [PMID: 15783879 DOI: 10.1103/physrevlett.94.082302] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2004] [Indexed: 05/24/2023]
Abstract
We report on charged hadron production in deuteron-gold reactions at sqrt[s(NN)]=200 GeV. Our measurements in the deuteron direction cover 1.4<eta<2.2, referred to as forward rapidity, and in the gold direction -2.0<eta<-1.4, referred to as backward rapidity, and a transverse momentum range p(T)=0.5-4.0 GeV/c. We compare the relative yields for different deuteron-gold collision centrality classes. We observe a suppression relative to binary collision scaling at forward rapidity, sensitive to low momentum fraction (x) partons in the gold nucleus, and an enhancement at backward rapidity, sensitive to high momentum fraction partons in the gold nucleus.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Jamel A, Alexander J, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Averbeck R, Awes TC, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bjorndal MT, Boissevain JG, Borel H, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Cussonneau JP, d'Enterria D, Das K, David G, Deák F, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drachenberg JL, Drapier O, Drees A, Durum A, Dutta D, Dzhordzhadze V, Efremenko YV, En'yo H, Espagnon B, Esumi S, Fields DE, Finck C, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fukao Y, Fung SY, Gadrat S, Germain M, Glenn A, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hasuko K, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hidas P, Hiejima H, Hill JC, Hobbs R, Holzmann W, Homma K, Hong B, Hoover A, Horaguchi T, Ichihara T, Ikonnikov VV, Imai K, Inaba M, Inuzuka M, Isenhower D, Isenhower L, Ishihara M, Issah M, Isupov A, Jacak BV, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang JH, Katou K, Kawabata T, Kazantsev A, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim E, Kim GB, Kim HJ, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klein-Boesing C, Kobayashi H, Kochetkov V, Kohara R, Komkov B, Konno M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kunde GJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Le Bornec Y, Lebedev A, Leckey S, Lee DM, Leitch MJ, Leite MAL, Li X, Li XH, Lim H, Litvinenko A, Liu MX, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Masui H, Matathias F, Matsumoto T, McCain MC, McGaughey PL, Miake Y, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mukhopadhyay D, Muniruzzaman M, Nagamiya S, Nagle JL, Nakamura T, Newby J, Nyanin AS, Nystrand J, O'brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Penev V, Peng JC, Pereira H, Peresedov V, Pierson A, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qualls J, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl S, Rosnet P, Rykov VL, Ryu SS, Saito N, Sakaguchi T, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shimomura M, Sickles A, Silva CL, Silvermyr D, Sim KS, Soldatov A, Soltz RA, Sondheim WE, Sorensen S, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Tojo J, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tydesjö H, Tyurin N, Uam TJ, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Willis N, Wohn FK, Woody CL, Xie W, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zhou S, Zimányi J, Zolin L, Zong X. Double helicity asymmetry in inclusive midrapidity pi0 production for polarized p+p collisions at square root s = 200 GeV. Phys Rev Lett 2004; 93:202002. [PMID: 15600917 DOI: 10.1103/physrevlett.93.202002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2004] [Indexed: 05/24/2023]
Abstract
We present a measurement of the double longitudinal spin asymmetry in inclusive pi(0) production in polarized proton-proton collisions at sqrt[s]=200 GeV. The data were taken at the Relativistic Heavy Ion Collider with average beam polarizations of 0.27. The measurements are the first in a program to study the longitudinal spin structure of the proton, using strongly interacting probes, at collider energies. The asymmetry is presented for transverse momenta 1-5 GeV/c at midrapidity, where next-to-leading-order perturbative quantum chromodynamic (NLO pQCD) calculations well describe the unpolarized cross section. The observed asymmetry is small and is compared to a NLO pQCD calculation with a range of polarized gluon distributions.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Bonato VLD, Gonçalves EDC, Soares EG, Santos Júnior RR, Sartori A, Coelho-Castelo AAM, Silva CL. Immune regulatory effect of pHSP65 DNA therapy in pulmonary tuberculosis: activation of CD8+ cells, interferon-gamma recovery and reduction of lung injury. Immunology 2004; 113:130-8. [PMID: 15312144 PMCID: PMC1782550 DOI: 10.1111/j.1365-2567.2004.01931.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
A DNA vaccine based on the heat-shock protein 65 Mycobacterium leprae gene (pHSP65) presented a prophylactic and therapeutic effect in an experimental model of tuberculosis. In this paper, we addressed the question of which protective mechanisms are activated in Mycobacterium tuberculosis-infected mice after immune therapy with pHSP65. We evaluated activation of the cellular immune response in the lungs of infected mice 30 days after infection (initiation of immune therapy) and in those of uninfected mice. After 70 days (end of immune therapy), the immune responses of infected untreated mice, infected pHSP65-treated mice and infected pCDNA3-treated mice were also evaluated. Our results show that the most significant effect of pHSP65 was the stimulation of CD8+ lung cell activation, interferon-gamma recovery and reduction of lung injury. There was also partial restoration of the production of tumour necrosis factor-alpha. Treatment with pcDNA3 vector also induced an immune stimulatory effect. However, only infected pHSP65-treated mice were able to produce significant levels of interferon-gamma and to restrict the growth of bacilli.
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Affiliation(s)
- V L D Bonato
- TB Network, Department of Biochemistry and Immunology, Ribeirao Preto School of Medicine, University of Sao Paulo, Brazil.
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Bose-Einstein correlations of charged pion pairs in Au + Au collisions at square root sNN = 200 GeV. Phys Rev Lett 2004; 93:152302. [PMID: 15524868 DOI: 10.1103/physrevlett.93.152302] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2004] [Indexed: 05/24/2023]
Abstract
Bose-Einstein correlations of identically charged pion pairs were measured by the PHENIX experiment at midrapidity in Au + Au collisions at square root s(NN)=200 GeV. The Bertsch-Pratt radius parameters were determined as a function of the transverse momentum of the pair and as a function of the centrality of the collision. Using the standard core-halo partial Coulomb fits, and a new parametrization which constrains the Coulomb fraction as determined from the unlike-sign pion correlation, the ratio R(out)/R(side) is within 0.8-1.1 for 0.25< <k(T)> <1.2 GeV/c. The centrality dependence of all radii is well described by a linear scaling in N(1/3)(part), and R(out)/R(side) for <k(T)> approximately 0.45 GeV/c is approximately constant at unity as a function of centrality.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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87
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. Measurement of nonrandom event-by-event fluctuations of average transverse momentum in square root of (sNN)=200 GeV Au+Au and p+p collisions. Phys Rev Lett 2004; 93:092301. [PMID: 15447093 DOI: 10.1103/physrevlett.93.092301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2003] [Indexed: 05/24/2023]
Abstract
Event-by-event fluctuations of the average transverse momentum of produced particles near midrapidity have been measured by the PHENIX Collaboration in square root of (sNN)=200 GeV Au+Au, and p+p collisions at the Relativistic Heavy Ion Collider. The fluctuations are observed to be in excess of the expectation for statistically independent particle emission for all centralities. The excess fluctuations exhibit a dependence on both the centrality of the collision and on the pT range over which the average is calculated. Both the centrality and pT dependence can be well reproduced by a simulation of random particle production with the addition of contributions from hard-scattering processes.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, Drees KA, du Rietz R, Durum A, Dutta D, Efremenko YV, El-Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zhou SJ, Zolin L. J/psi production from proton-proton collisions at square root of s=200 GeV. Phys Rev Lett 2004; 92:051802. [PMID: 14995296 DOI: 10.1103/physrevlett.92.051802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2003] [Indexed: 05/24/2023]
Abstract
J/psi production has been measured in proton-proton collisions at square root of s=200 GeV over a wide rapidity and transverse momentum range by the PHENIX experiment at the Relativistic Heavy Ion Collider. Distributions of the rapidity and transverse momentum, along with measurements of the mean transverse momentum and total production cross section are presented and compared to available theoretical calculations. The total J/psi cross section is 4.0+/-0.6(stat)+/-0.6(syst)+/-0.4(abs) mu b. The mean transverse momentum is 1.80+/-0.23(stat)+/-0.16(syst) GeV/c.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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89
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, D'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, Drees KA, Du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier De Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, Van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zolin L. Midrapidity neutral-pion production in proton-proton collisions at square root s = 200 GeV. Phys Rev Lett 2003; 91:241803. [PMID: 14683109 DOI: 10.1103/physrevlett.91.241803] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2003] [Indexed: 05/24/2023]
Abstract
The invariant differential cross section for inclusive neutral-pion production in p+p collisions at sqrt[s]=200 GeV has been measured at midrapidity (|eta|<0.35) over the range 1<p(T) less, similar 14 GeV/c by the PHENIX experiment at the Relativistic Heavy Ion Collider. Predictions of next-to-leading order perturbative QCD calculations are consistent with these measurements. The precision of our result is sufficient to differentiate between prevailing gluon-to-pion fragmentation functions.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Lima KM, dos Santos SA, Santos RR, Brandão IT, Rodrigues JM, Silva CL. Efficacy of DNA–hsp65 vaccination for tuberculosis varies with method of DNA introduction in vivo. Vaccine 2003; 22:49-56. [PMID: 14604570 DOI: 10.1016/s0264-410x(03)00543-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A DNA vaccine codifying the mycobacterial hsp65 can prevent infection with Mycobacterium tuberculosis in a prophylactic setting and also therapeutically reduce the number of bacteria in infected mice. The protective mechanism is thought to be related to Th1-mediated events that result in bacterial killing. To determine the best method of hsp65 introduction for vaccination efficacy against tuberculosis (TB), we evaluated the immunogenicity and protection of DNA-hsp65 administered by gene gun bombardment or intramuscular (i.m.) injection of naked DNA. Immunization by gene gun induced immune response with plasmid doses 100-fold lower than those required for intramuscular immunization. However, in contrast to intramuscular immunization, which was protective in these studies, gene gun immunization did not protect BALB/c mice against challenge infection.
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Affiliation(s)
- K M Lima
- Instituto do Milênio REDE-TB, Department of Biochemistry and Immunology, School of Medicine of Ribeirão Preto, University of São Paulo, 14049-900 Ribeirão Preto, SP, Brazil
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91
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, D'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower LD, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar A, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zolin L. Elliptic flow of identified hadrons in Au+Au collisions at sqrt sNN =200 GeV. Phys Rev Lett 2003; 91:182301. [PMID: 14611277 DOI: 10.1103/physrevlett.91.182301] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2003] [Indexed: 05/24/2023]
Abstract
The anisotropy parameter (v(2)), the second harmonic of the azimuthal particle distribution, has been measured with the PHENIX detector in Au+Au collisions at sqrt[s(NN)]=200 GeV for identified and inclusive charged particle production at central rapidities (|eta|<0.35) with respect to the reaction plane defined at high rapidities (|eta|=3-4 ). We observe that the v(2) of mesons falls below that of (anti)baryons for p(T)>2 GeV/c, in marked contrast to the predictions of a hydrodynamical model. A quark-coalescence model is also investigated.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp G, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower LD, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar A, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, Van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zolin L. Scaling properties of proton and antiproton production in sqrt[s(NN)]=200 GeV Au+Au collisions. Phys Rev Lett 2003; 91:172301. [PMID: 14611335 DOI: 10.1103/physrevlett.91.172301] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2003] [Indexed: 05/24/2023]
Abstract
We report on the yield of protons and antiprotons, as a function of centrality and transverse momentum, in Au+Au collisions at sqrt[s(NN)]=200 GeV measured at midrapidity by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider. In central collisions at intermediate transverse momenta (1.5<p(T)<4.5 GeV/c) a significant fraction of all produced particles are protons and antiprotons. They show a centrality-scaling behavior different from that of pions. The pmacr;/pi and p/pi ratios are enhanced compared to peripheral Au+Au, p+p, and e(+)e(-) collisions. This enhancement is limited to p(T)<5 GeV/c as deduced from the ratio of charged hadrons to pi(0) measured in the range 1.5<p(T)<9 GeV/c.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Jamel A, Alexander J, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Averbeck R, Awes TC, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bjorndal MT, Boissevain JG, Borel H, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Cussonneau JP, d'Enterria D, Das K, David G, Deák F, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Devismes A, Dietzsch O, Drachenberg JL, Drapier O, Drees A, Durum A, Dutta D, Dzhordzhadze V, Efremenko YV, En'yo H, Espagnon B, Esumi S, Fields DE, Finck C, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fukao Y, Fung SY, Gadrat S, Germain M, Glenn A, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hasuko K, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hidas P, Hiejima H, Hill JC, Hobbs R, Holzmann W, Homma K, Hong B, Hoover A, Horaguchi T, Ichihara T, Ikonnikov VV, Imai K, Inuzuka M, Isenhower D, Isenhower L, Issah M, Isupov A, Jacak BV, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang JH, Katou K, Kawabata T, Kazantsev A, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DJ, Kim E, Kim GB, Kim HJ, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klein-Boesing C, Kobayashi H, Kochetkov V, Kohara R, Komkov B, Konno M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kunde GJ, Kurita K, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lajoie JG, Le Bornec Y, Lebedev A, Leckey S, Lee DM, Leitch MJ, Leite MAL, Li X, Li XH, Lim H, Litvinenko A, Liu MX, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Masui H, Matathias F, Matsumoto T, McCain MC, McGaughey PL, Miake Y, Miller TE, Milov A, Mioduszewski S, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mukhopadhyay D, Muniruzzaman M, Nagamiya S, Nagle JL, Nakamura T, Newby J, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada H, Okada K, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Penev V, Peng JC, Pereira H, Peresedov V, Pierson A, Pinkenburg C, Pisani RP, Purschke ML, Purwar AK, Qualls J, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl S, Rosnet P, Rykov VL, Ryu SS, Saito N, Sakaguchi T, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shea TK, Shein I, Shibata TA, Shigaki K, Shimomura M, Sickles A, Silva CL, Silvermyr D, Sim KS, Soldatov A, Soltz RA, Sondheim WE, Sorensen S, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagi S, Takagui EM, Taketani A, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Thomas TL, Togawa M, Tojo J, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tydesjö H, Tyurin N, Uam TJ, van Hecke HW, Velkovska J, Velkovsky M, Veszprémi V, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Willis N, Wohn FK, Woody CL, Xie W, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zimányi J, Zolin L, Zong X. Absence of suppression in particle production at large transverse momentum in sqrt[s(NN)]=200 GeV d+Au collisions. Phys Rev Lett 2003; 91:072303. [PMID: 12935008 DOI: 10.1103/physrevlett.91.072303] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2003] [Indexed: 05/24/2023]
Abstract
Transverse momentum spectra of charged hadrons with p(T)<8 GeV/c and neutral pions with p(T)<10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in d+Au collisions at sqrt[s(NN)]=200 GeV. The measured yields are compared to those in p+p collisions at the same sqrt[s(NN)] scaled up by the number of underlying nucleon-nucleon collisions in d+Au. The yield ratio does not show the suppression observed in central Au+Au collisions at RHIC. Instead, there is a small enhancement in the yield of high momentum particles.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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94
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Adler SS, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson SH, Averbeck R, Awes TC, Azmoun R, Babintsev V, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain JG, Borel H, Borenstein S, Brooks ML, Brown DS, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camard X, Chai JS, Chand P, Chang WC, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi J, Choudhury RK, Chujo T, Cianciolo V, Cobigo Y, Cole BA, Constantin P, d'Enterria DG, David G, Delagrange H, Denisov A, Deshpande A, Desmond EJ, Dietzsch O, Drapier O, Drees A, Drees KA, du Rietz R, Durum A, Dutta D, Efremenko YV, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields DE, Fleuret F, Fokin SL, Fox BD, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fung SY, Garpman S, Ghosh TK, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Guryn W, Gustafsson HA, Hachiya T, Haggerty JS, Hamagaki H, Hansen AG, Hartouni EP, Harvey M, Hayano R, He X, Heffner M, Hemmick TK, Heuser JM, Hibino M, Hill JC, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov VV, Imai K, Isenhower L, Ishihara M, Issah M, Isupov A, Jacak BV, Jang WY, Jeong Y, Jia J, Jinnouchi O, Johnson BM, Johnson SC, Joo KS, Jouan D, Kametani S, Kamihara N, Kang JH, Kapoor SS, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim DH, Kim DJ, Kim DW, Kim E, Kim GB, Kim HJ, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon PJ, Kuberg CH, Kurita K, Kuroki Y, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Ladygin V, Lajoie JG, Lebedev A, Leckey S, Lee DM, Lee S, Leitch MJ, Li XH, Lim H, Litvinenko A, Liu MX, Liu Y, Maguire CF, Makdisi YI, Malakhov A, Manko VI, Mao Y, Martinez G, Marx MD, Masui H, Matathias F, Matsumoto T, McGaughey PL, Melnikov E, Messer F, Miake Y, Milan J, Miller TE, Milov A, Mioduszewski S, Mischke RE, Mishra GC, Mitchell JT, Mohanty AK, Morrison DP, Moss JM, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle JL, Nakamura T, Nandi BK, Nara M, Newby J, Nilsson P, Nyanin AS, Nystrand J, O'Brien E, Ogilvie CA, Ohnishi H, Ojha ID, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek APT, Pantuev VS, Papavassiliou V, Park J, Parmar A, Pate SF, Peitzmann T, Peng JC, Peresedov V, Pinkenburg C, Pisani RP, Plasil F, Purschke ML, Purwar AK, Rak J, Ravinovich I, Read KF, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu SS, Sadler ME, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato HD, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw MR, Shea TK, Shibata TA, Shigaki K, Shiina T, Silva CL, Silvermyr D, Sim KS, Singh CP, Singh V, Sivertz M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Sullivan JP, Takagui EM, Taketani A, Tamai M, Tanaka KH, Tanaka Y, Tanida K, Tannenbaum MJ, Tarján P, Tepe JD, Thomas TL, Tojo J, Torii H, Towell RS, Tserruya I, Tsuruoka H, Tuli SK, Tydesjö H, Tyurin N, van Hecke HW, Velkovska J, Velkovsky M, Villatte L, Vinogradov AA, Volkov MA, Vznuzdaev E, Wang XR, Watanabe Y, White SN, Wohn FK, Woody CL, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young GR, Yushmanov IE, Zajc WA, Zhang C, Zhou S, Zolin L. Suppressed pi(0) production at large transverse momentum in central Au+Au collisions at sqrt[s(NN)]=200 GeV. Phys Rev Lett 2003; 91:072301. [PMID: 12935006 DOI: 10.1103/physrevlett.91.072301] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2003] [Indexed: 05/24/2023]
Abstract
Transverse momentum spectra of neutral pions in the range 1<p(T)<10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in Au+Au collisions at sqrt[s(NN)]=200 GeV. The pi(0) multiplicity in central reactions is significantly below the yields measured at the same sqrt[s(NN)] in peripheral Au+Au and p+p reactions scaled by the number of nucleon-nucleon collisions. For the most central bin, the suppression factor is approximately 2.5 at p(T)=2 GeV/c and increases to approximately 4-5 at p(T) approximately 4 GeV/c. At larger p(T), the suppression remains constant within errors. The deficit is already apparent in semiperipheral reactions and increases smoothly with centrality.
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Affiliation(s)
- S S Adler
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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Rotta NT, Silva AR, Silva CL, Silva FF, Silva MG, Santos LO, Kelbert S, Ohlweiler L. Follow-up of patients with vertically-acquired HIV infection who are more than 9 years old. J Trop Pediatr 2003; 49:253-5. [PMID: 12929891 DOI: 10.1093/tropej/49.4.253] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of this study was to assess the influence of biological markers of infection and antiretroviral therapy on the survival rate and quality of life in children with vertically-acquired HIV infection. This retrospective study was performed between August and October 2000. Outcome measures were presence of neurological disease, CD4 cell count, cranial computerized tomography (CT), electroencephalogram (EEG), use of antiretroviral agents, and mortality. The presence of neurological disease and of pathological findings in cranial computed tomography, and the lack of biological monitoring are associated with poor prognosis. Follow-up of this population should continue to allow long-term assessment of the social and biological impact of vertically-transmitted HIV.
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Affiliation(s)
- N T Rotta
- Pediatric Neurology Unit, Pediatric Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
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Lima KM, Santos SA, Lima VMF, Coelho-Castelo AAM, Rodrigues JM, Silva CL. Single dose of a vaccine based on DNA encoding mycobacterial hsp65 protein plus TDM-loaded PLGA microspheres protects mice against a virulent strain of Mycobacterium tuberculosis. Gene Ther 2003; 10:678-85. [PMID: 12692596 DOI: 10.1038/sj.gt.3301908] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The high incidence of tuberculosis around the world and the inability of BCG to protect certain populations clearly indicate that an improved vaccine against tuberculosis is needed. A single antigen, the mycobacterial heat shock protein hsp65, is sufficient to protect BALB/c mice against challenge infection when administered as DNA vaccine in a three-dose-based schedule. In order to simplify the vaccination schedule, we coencapsulated hsp65-DNA and trehalose dimicolate (TDM) into biodegradable poly(DL-lactide-co-glycolide) (PLGA) microspheres. BALB/c mice immunized with a single dose of DNA-hsp65/TDM-loaded microspheres produced high levels of IgG2a subtype antibody and high amounts of IFN-gamma in the supernatant of spleen cell cultures. DNA-hsp65/TDM-loaded microspheres were also able to induce high IFN-gamma production in bulk lung cells from challenged mice and confer protection as effective as that attained after three doses of naked DNA administration. This new formulation also allowed a ten-fold reduction in the DNA dose when compared to naked DNA. Thus, this combination of DNA vaccine and adjuvants with immunomodulatory and carrier properties holds the potential for an improved vaccine against tuberculosis.
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Affiliation(s)
- K M Lima
- Department of Biochemistry and Immunology, School of Medicine of Ribeirão Preto, University of São Paulo, Brazil
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97
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Abstract
Histoplasma capsulatum is a fungus found intracellularly in neutrophils and peripheral blood mononuclear cells (PBMCs), suggesting that it is capable of evading damage and survives inside these cells. In this study, we report that neutrophils from H. capsulatum-infected mice, and human neutrophils and mononuclear cells exposed to H. capsulatum presented less apoptosis than those from noninfected animals or cells exposed to medium only. Moreover, cells harvested from infected animals are resistant to apoptosis induced by dexamethasone - a proapoptotic stimulant. We also show that neutrophils harvested from infected mice and PBMCs from humans exposed to the fungus had a greatly decreased Mac-1 expression. We conclude that H. capsulatum induces an antiapoptotic state on leucocytes, which correlates with decreased cell-surface Mac-1 expression. These facts may represent an escape mechanism for the fungus by delaying cell death and allowing the fungus to survive inside leucocytes.
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Affiliation(s)
- A I Medeiros
- Department of Clinical Analyses, Toxicology and Bromatology, School of Pharmaceutical Sciences of Ribeirão Preto, SP, Brazil
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98
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Abstract
Control of infection by Mycobacterium tuberculosis is dependent on macrophage activation and efficient migration of effector T-cell populations. Lymphocyte differentiation is associated with changes in cell surface phenotype and alterations in the migratory pattern of these cells. In this study, we investigated the expression of adhesion receptors involved in activation and migration process in experimental tuberculosis. We observed that susceptible BALB/c mice infected with virulent M. tuberculosis by intraperitoneal route presented downmodulation of very late antigen 4 (VLA-4) and unchanged levels of CD18 and CD44hi on peritoneal lymphocytes. On the other hand, lymphocytes from resistant C57BL/6 mice infected by the same route showed unchanged levels of VLA-4 and upregulation of CD18 and CD44hi. However, when BALB/c mice were infected by intratracheal route, lung lymphocytes presented a different pattern of CD18, CD44hi and VLA-4 expression from that observed on peritoneal cells, characterized by unchanged levels of VLA-4 and upregulation of CD18 and CD44hi- coincidentally the same phenotype found on peritoneal cells from C57BL/6. These results suggest that susceptibility and resistance to M. tuberculosis infection, depending on the experimental model, are related to the expression of CD18, CD44hi and VLA-4. Moreover, the microenvironment at the site of infection seems to differentially regulate the expression of these receptors. Thus, the up- or downmodulation of these adhesion receptors is probably associated with differential recruitment of T cells at the site of infection, which may or may not mediate protection in experimental tuberculosis.
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Affiliation(s)
- V L D Bonato
- REDE-TB, Department of Biochemistry and Immunology, School of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
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99
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Anjos AR, Calvi SA, Ferracini R, Peraçoli MTS, Silva CL, Soares AMVC. Role of Paracoccidioides brasiliensis cell wall fraction containing beta-glucan in tumor necrosis factor-alpha production by human monocytes: correlation with fungicidal activity. Med Mycol 2002; 40:377-82. [PMID: 12230216 DOI: 10.1080/mmy.40.4.377.382] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
The polysaccharide fraction of Paracoccidioides brasiliensis mycelial cell wall (F1 fraction), the active component of which is composed of beta-glucan, was investigated in regard to the activation of human monocytes for fungal killing. The cells were primed with interferon-gamma (IFN-gamma) or F1 (100 and 200 microg ml(-1)) or F1 (100 and 200 microg ml(-1)) plus IFN-gamma for 24 h and then evaluated for H2O2 release. In other experiments, the cells were pretreated with the same stimuli, challenged with a virulent strain of P. brasiliensis and evaluated for fungicidal activity and levels of tumor necrosis factor (TNF-alpha) in the supernatants. F1 increased the levels of H2O2 in a similar manner to IFN-gamma. However, a synergistic effect between these two activators was not detected. On the contrary, a significant fungicidal activity was only obtained after priming with IFN-gamma plus F1. This higher activity was associated with high levels of TNF-alpha in the supernatants of the cocultures. Overall, P. brasiliensis F1 fraction induced human monocytes to release relatively high levels of TNF-alpha, which, in combination with IFN-gamma, is responsible for the activation of human monocytes for effective killing of P. brasiliensis.
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100
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Anjos AR, Calvi SA, Ferracini R, Peraçoli MTS, Silva CL, Soares AMVC. Role of Paracoccidioides brasiliensis cell wall fraction containing ß-glucan in tumor necrosis factor-alpha production by human monocytes: correlation with fungicidal activity. Med Mycol 2002. [DOI: 10.1080/714031128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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