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Odgerel T, Kikuchi J, Wada T, Shimizu R, Futaki K, Kano Y, Furukawa Y. The FLT3 inhibitor PKC412 exerts differential cell cycle effects on leukemic cells depending on the presence of FLT3 mutations. Oncogene 2007; 27:3102-10. [PMID: 18071308 DOI: 10.1038/sj.onc.1210980] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
PKC412 is a staurosporine derivative that inhibits several protein kinases including FLT3, and is highly anticipated as a novel therapeutic agent for acute myeloblastic leukemia (AML) carrying FLT3 mutations. In this study, we show that PKC412 exerts differential cell cycle effects on AML cells depending on the presence of FLT3 mutations. PKC412 elicits massive apoptosis without markedly affecting cell cycle patterns in AML cell lines with FLT3 mutations (MV4-11 and MOLM13), whereas it induces G2 arrest but not apoptosis in AML cell lines without FLT3 mutations (THP-1 and U937). In MV4-11 and MOLM13 cells, PKC412 inactivates Myt-1 and activates CDC25c, leading to the activation of CDC2. Activated CDC2 phosphorylates Bad at serine-128 and facilitates its translocation to the mitochondria, where Bad triggers apoptosis. In contrast, PKC412 inactivates CDC2 by inducing serine-216 phosphorylation and subsequent cytoplasmic sequestration of CDC25c in THP-1 and U937 cells. As a result, cells are arrested in the G2 phase of the cell cycle, but do not undergo apoptosis because Bad is not activated. The FLT3 mutation-dependent differential cell cycle effect of PKC412 is considered an important factor when PKC412 is combined with cell cycle-specific anticancer drugs in the treatment of cancer and leukemia.
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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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Fujiyama S, Takigawa M, Kikuchi J, Cui HB, Fujiwara H, Kobayashi H. Compensation of effective field in the field-induced superconductor kappa-(BETS)2FeBr4 observed by 77Se NMR. PHYSICAL REVIEW LETTERS 2006; 96:217001. [PMID: 16803267 DOI: 10.1103/physrevlett.96.217001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2006] [Indexed: 05/10/2023]
Abstract
We report results of 77Se NMR frequency shift in the normal state of the organic charge-transfer salt kappa-(BETS)2FeBr4 which shows magnetic field-induced superconductivity (FISC). From a simple mean-field analysis, we determined the field and the temperature dependences of the magnetization m(pi) of the pi conduction electrons on BETS molecules. We found that the Fe spins are antiferromagnetically coupled to the pi electrons and determined the exchange field to be J = -2.3T/microB. The exchange field from the fully saturated Fe moments (5 microB) is compensated by an external field of 12 T. This is close to the central field of the FISC phase, consistent with the Jaccarino-Peter local field-compensation mechanism for FISC [Phys. Rev. Lett. 9, 290 (1962)].
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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 2006; 96:032302. [PMID: 16486688 DOI: 10.1103/physrevlett.96.032302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [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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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]. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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Kikuchi J, Ozaki H, Nonomura C, Shinohara H, Iguchi S, Nojiri H, Hamada H, Kiuchi A, Nakamura M. Transfection of antisense core 2 beta1,6-N-acetylglucosaminyltransferase-1 cDNA suppresses selectin ligand expression and tissue infiltration of B-cell precursor leukemia cells. Leukemia 2005; 19:1934-40. [PMID: 16179912 DOI: 10.1038/sj.leu.2403951] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
B-cell precursor (BCP) leukemia cells infiltrate into peripheral organs and the disease often relapses. Inhibition of tissue infiltration may improve the treatment outcome of BCP-leukemia patients. Selectin ligand has been suggested to play an important role in the infiltration of leukemia cells. However, the regulation mechanisms and involvement in tissue infiltration of selectin ligand expression in BCP-leukemia cells are not fully understood. In this study, we report that BCP-leukemia cells express selectin ligand on O-sialoglycoproteins. Core 2 beta1,6-N-acetylglucosaminyltransferase-1 (C2GnT-1) is mainly expressed in BCP-leukemia cells. Transfection of the antisense C2GnT-1 cDNA resulted in a significant reduction of either selectin ligand expression or selectin-dependent cell adhesion in BCP-leukemia cell line KM3 cells. Migration ability into mouse peripheral organs was reduced significantly in the antisense transfectant. These findings suggest that C2GnT-1 regulates selectin ligand expression. Downregulation of the selectin ligand expression level inhibits tissue infiltration of BCP-leukemia cells. C2GnT-1 may be a candidate of therapeutic target for the inhibition of infiltration of leukemia cells.
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93
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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. PHYSICAL REVIEW LETTERS 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] [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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Guo SL, Doke T, Li L, Chen BL, Zhang DH, Kikuchi J, Terasawa K, Komiyama M, Hara K, Fuse T, Yasuda N, Murakami T. Comparison between theoretical model and experimental calibrations and its inference for track formation in bubble detectors. RADIAT MEAS 2005. [DOI: 10.1016/j.radmeas.2005.06.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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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. PHYSICAL REVIEW LETTERS 2005; 94:232302. [PMID: 16090463 DOI: 10.1103/physrevlett.94.232302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [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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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. PHYSICAL REVIEW LETTERS 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] [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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Kikuchi E, Yamazaki K, Sukoh N, Kikuchi J, Asahina H, Imura M, Onodera Y, Kurimoto N, Kinoshita I, Nishimura M. Endobronchial ultrasonography with guide-sheath for peripheral pulmonary lesions. Eur Respir J 2005; 24:533-7. [PMID: 15459129 DOI: 10.1183/09031936.04.00138603] [Citation(s) in RCA: 146] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The usefulness of endobronchial ultrasonography (EBUS) with guide-sheath (GS) as a guide for transbronchial biopsy (TBB) for diagnosing peripheral pulmonary lesions (PPL)s and for improving diagnostic accuracy was evaluated in this study. EBUS-GS-guided TBB was performed in 24 patients with 24 PPLs of < or =30 mm in diameter (average diameter=18.4 mm). A 20-MHz radial-type ultrasound probe, covered with GS was inserted via a working bronchoscope channel and advanced to the PPL in order to produce an EBUS image. The probe with the GS was confirmed to reach the lesion by EBUS imaging and X-ray fluoroscopy. When the lesion was not identified on the EBUS image, the probe was removed and a curette was used to lead the GS to the lesion. After localising the lesion, the probe was removed, and TBB and bronchial brushing were performed via the GS. Nineteen peripheral lesions (79.2%) were visualised by EBUS. All patients whose PPLs were visible on EBUS images subsequently underwent an EBUS-GS-guided diagnostic procedure. A total of 14 lesions (58.3%) were diagnosed. Even when restricted to PPLs <20 mm in diameter, the diagnostic sensitivity was 53%. In conclusion, endobronchial ultrasonography with guide sheath-guided transbronchial biopsy was feasible and effective for diagnosing peripheral pulmonary lesions.
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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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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. PHYSICAL REVIEW LETTERS 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] [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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