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Adams J, Adler C, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Arkhipkin D, Averichev GS, Badyal SK, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bezverkhny BI, Bhardwaj S, Bhati AK, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Botje M, Boucham A, Brandin A, Bravar A, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Carroll J, Castillo J, Cebra D, Chaloupka P, Chattopadhyay S, Chen HF, Chen Y, Chernenko SP, Cherney M, Chikanian A, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Das D, Das S, Derevschikov AA, Didenko L, Dietel T, Dong WJ, Dong X, Draper JE, Du F, Dubey AK, Dunin VB, Dunlop JC, Dutta Majumdar MR, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Filip P, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Ganti MS, Gaudichet L, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grebenyuk O, Gronstal S, Grosnick D, Guertin SM, Gupta A, Gutierrez TD, Hallman TJ, Hamed A, Hardtke D, Harris JW, Heinz M, Henry TW, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Huang SL, Hughes E, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Jiang H, Johnson I, Jones PG, Judd EG, Kabana S, Kaplan M, Keane D, Khodyrev VY, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, LeVine MJ, Li C, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Ma YG, Magestro D, Mahajan S, Mangotra LK, Mahapatra DP, Majka R, Manweiler R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McClain CJ, McShane TS, Meissner F, Melnick Y, Meschanin A, Miller ML, Milosevich Z, Minaev NG, Mironov C, Mischke A, Mishra D, Mitchell J, Mohanty B, Molnar L, Moore CF, Mora-Corral MJ, Morozov DA, Morozov V, De Moura MM, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Netrakanti PK, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pal SK, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Petrov VA, Phatak SC, Picha R, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Raniwala R, Raniwala S, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Ruan LJ, Sahoo R, Sakrejda I, Salur S, Sandweiss J, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schweda K, Seger J, Seyboth P, Shahaliev E, Shao M, Shao W, Sharma M, Shestermanov KE, Shimanskii SS, Singaraju RN, Simon F, Skoro G, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Speltz J, Spinka HM, Srivastava B, Stanislaus TDS, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Timoshenko S, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Varma R, Vasilevski I, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Voloshin SA, Vznuzdaev M, Waggoner W, Wang F, Wang G, Wang G, Wang XL, Wang Y, Wang ZM, Ward H, Watson JW, Webb JC, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu ZZ, Yamamoto E, Yepes P, Yurevich VI, Yuting B, Zanevski YV, Zhang H, Zhang WM, Zhang ZP, Zhaomin ZP, Zizong ZP, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Rho0 production and possible modification in Au+Au and p+p collisions at square root [sNN] = 200 GeV. PHYSICAL REVIEW LETTERS 2004; 92:092301. [PMID: 15089460 DOI: 10.1103/physrevlett.92.092301] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2003] [Indexed: 05/24/2023]
Abstract
We report results on rho(770)(0)-->pi(+)pi(-) production at midrapidity in p+p and peripheral Au+Au collisions at sqrt[s(NN)]=200 GeV. This is the first direct measurement of rho(770)(0)-->pi(+)pi(-) in heavy-ion collisions. The measured rho(0) peak in the invariant mass distribution is shifted by approximately 40 MeV/c(2) in minimum bias p+p interactions and approximately 70 MeV/c(2) in peripheral Au+Au collisions. The rho(0) mass shift is dependent on transverse momentum and multiplicity. The modification of the rho(0) meson mass, width, and shape due to phase space and dynamical effects are discussed.
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Adams J, Adler C, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Anderson M, Arkhipkin D, Averichev GS, Badyal SK, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bezverkhny BI, Bhardwaj S, Bhaskar P, Bhati AK, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Botje M, Boucham A, Brandin A, Bravar A, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen HF, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Das D, Das S, Derevschikov AA, Didenko L, Dietel T, Dong WJ, Dong X, Draper JE, Du F, Dubey AK, Dunin VB, Dunlop JC, Dutta Majumdar MR, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Filip P, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Ganti MS, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grigoriev V, Gronstal S, Grosnick D, Guedon M, Guertin SM, Gupta A, Gushin E, Gutierrez TD, Hallman TJ, Hardtke D, Harris JW, Heinz M, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Huang SL, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Jiang H, Johnson I, Jones PG, Judd EG, Kabana S, Kaneta M, Kaplan M, Keane D, Khodyrev VY, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, LeVine MJ, Li C, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Ma YG, Magestro D, Mahajan S, Mangotra LK, Mahapatra DP, Majka R, Manweiler R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mironov C, Mishra D, Mitchell J, Mohanty B, Molnar L, Moore CF, Mora-Corral MJ, Morozov DA, Morozov V, de Moura MM, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Pal SK, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Perkins C, Peryt W, Petrov VA, Phatak SC, Picha R, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Raniwala R, Raniwala S, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Ruan LJ, Sahoo R, Sakrejda I, Salur S, Sandweiss J, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shao M, Sharma M, Shestermanov KE, Shimanskii SS, Singaraju RN, Simon F, Skoro G, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus S, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, de Toledo AS, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trivedi MD, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasiliev AN, Vasiliev M, Vigdor SE, Viyogi YP, Voloshin SA, Waggoner W, Wang F, Wang G, Wang XL, Wang ZM, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu ZZ, Yamamoto E, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zhang ZP, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Azimuthal anisotropy at the relativistic heavy ion collider: the first and fourth harmonics. PHYSICAL REVIEW LETTERS 2004; 92:062301. [PMID: 14995231 DOI: 10.1103/physrevlett.92.062301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2003] [Indexed: 05/24/2023]
Abstract
We report the first observations of the first harmonic (directed flow, v(1)) and the fourth harmonic (v(4)), in the azimuthal distribution of particles with respect to the reaction plane in Au+Au collisions at the BNL Relativistic Heavy Ion Collider (RHIC). Both measurements were done taking advantage of the large elliptic flow (v(2)) generated at RHIC. From the correlation of v(2) with v(1) it is determined that v(2) is positive, or in-plane. The integrated v(4) is about a factor of 10 smaller than v(2). For the sixth (v(6)) and eighth (v(8)) harmonics upper limits on the magnitudes are reported.
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Adams J, Adler C, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Anderson M, Arkhipkin D, Averichev GS, Badyal SK, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bezverkhny BI, Bhardwaj S, Bhaskar P, Bhati AK, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Botje M, Boucham A, Brandin A, Bravar A, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen HF, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Das D, Das S, Derevschikov AA, Didenko L, Dietel T, Dong WJ, Dong X, Draper JE, Du F, Dubey AK, Dunin VB, Dunlop JC, Dutta Majumdar MR, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Filip P, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Ganti MS, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grigoriev V, Gronstal S, Grosnick D, Guedon M, Guertin SM, Gupta A, Gushin E, Gutierrez TD, Hallman TJ, Hardtke D, Harris JW, Heinz M, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Huang SL, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Jiang H, Johnson I, Jones PG, Judd EG, Kabana S, Kaneta M, Kaplan M, Keane D, Khodyrev VY, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, LeVine MJ, Li C, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Ma YG, Magestro D, Mahajan S, Mangotra LK, Mahapatra DP, Majka R, Manweiler R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mironov C, Mishra D, Mitchell J, Mohanty B, Molnar L, Moore CF, Mora-Corral MJ, Morozov DA, Morozov V, de Moura MM, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Pal SK, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Perkins C, Peryt W, Petrov VA, Phatak SC, Picha R, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Raniwala R, Raniwala S, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Ruan LJ, Sahoo R, Sakrejda I, Salur S, Sandweiss J, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shao M, Sharma M, Shestermanov KE, Shimanskii SS, Singaraju RN, Simon F, Skoro G, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus S, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, de Toledo AS, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trivedi MD, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasiliev AN, Vasiliev M, Vigdor SE, Viyogi YP, Voloshin SA, Waggoner W, Wang F, Wang G, Wang XL, Wang ZM, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu ZZ, Yamamoto E, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zhang ZP, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Particle-type dependence of azimuthal anisotropy and nuclear modification of particle production in Au+Au collisions at square root of sNN=200 GeV. PHYSICAL REVIEW LETTERS 2004; 92:052302. [PMID: 14995300 DOI: 10.1103/physrevlett.92.052302] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2003] [Indexed: 05/24/2023]
Abstract
We present STAR measurements of the azimuthal anisotropy parameter v(2) and the binary-collision scaled centrality ratio R(CP) for kaons and lambdas (Lambda+Lambda) at midrapidity in Au+Au collisions at square root of s(NN)=200 GeV. In combination, the v(2) and R(CP) particle-type dependencies contradict expectations from partonic energy loss followed by standard fragmentation in vacuum. We establish p(T) approximately 5 GeV/c as the value where the centrality dependent baryon enhancement ends. The K(0)(S) and Lambda+Lambda v(2) values are consistent with expectations of constituent-quark-number scaling from models of hadron formation by parton coalescence or recombination.
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Ahmadi J, Babaeebeigi M, Maany I, Porter J, Mohagheghzadeh M, Ahmadi N, Dehbozorgi G. Naltrexone for alcohol-dependent patients. Ir J Med Sci 2004; 173:34-7. [PMID: 15732235 DOI: 10.1007/bf02914522] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND Clinical trials have shown that naltrexone 50 mg/day reduces alcohol consumption and relapse rates in alcohol dependents. AIM To investigate the efficacy of 50mg/day dose of naltrexone in the maintenance of alcohol-dependent subjects over a 36-week treatment period. METHODS Subjects were randomised into two equal groups, consisting of 116 male alcohol-dependent patients who met the DSM-IV criteria for alcohol dependence and were seeking treatment. The participants received naltrexone or placebo at a dose of 50 mg/day and were treated in an outpatient clinic, offering a weekly 0.5-hour individual counselling session. Days retained in treatment were measured. RESULTS Forty-one participants (35.3%) completed the 36-week study. Completion rates by group were 44.8% for the 50 mg naltrexone group and 25.9% for the placebo group (chi2=4.56, DF=1, 2-sided significance=0.033). CONCLUSION The results support the efficacy and safety of naltrexone for outpatient treatment of alcohol-dependent individuals in Iran.
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Adams J, Adler C, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Anderson M, Arkhipkin D, Averichev GS, Badyal SK, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bezverkhny BI, Bhardwaj S, Bhaskar P, Bhati AK, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Botje M, Boucham A, Brandin A, Bravar A, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen HF, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Das D, Das S, Derevschikov AA, Didenko L, Dietel T, Dong X, Draper JE, Du F, Dubey AK, Dunin VB, Dunlop JC, Dutta Majumdar MR, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Filip P, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Ganti MS, Gutierrez TD, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grigoriev V, Gronstal S, Grosnick D, Guedon M, Guertin SM, Gupta A, Gushin E, Hallman TJ, Hardtke D, Harris JW, Heinz M, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Huang SL, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kabana S, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Koetke DD, Kollegger T, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li C, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Ma YG, Magestro D, Mahajan S, Mangotra LK, Mahapatra DP, Majka R, Manweiler R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mironov C, Mishra D, Mitchell J, Mohanty B, Molnar L, Moore CF, Mora-Corral MJ, Morozov V, de Moura MM, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Pal SK, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Phatak SC, Picha R, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Raniwala R, Raniwala S, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Ruan LJ, Rykov V, Sahoo R, Sakrejda I, Salur S, Sandweiss J, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shao M, Sharma M, Shestermanov KE, Shimanskii SS, Singaraju RN, Simon F, Skoro G, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus S, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trivedi MD, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasiliev AN, Vasiliev M, Vigdor SE, Viyogi YP, Voloshin SA, Waggoner W, Wang F, Wang G, Wang XL, Wang ZM, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu ZZ, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang HY, Zhang WM, Zhang ZP, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Pion-Kaon correlations in central Au+Au collisions at square root [sNN] = 130 GeV. PHYSICAL REVIEW LETTERS 2003; 91:262302. [PMID: 14754044 DOI: 10.1103/physrevlett.91.262302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2003] [Indexed: 05/24/2023]
Abstract
Pion-kaon correlation functions are constructed from central Au+Au STAR data taken at sqrt[s(NN)]=130 GeV by the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The results suggest that pions and kaons are not emitted at the same average space-time point. Space-momentum correlations, i.e., transverse flow, lead to a space-time emission asymmetry of pions and kaons that is consistent with the data. This result provides new independent evidence that the system created at RHIC undergoes a collective transverse expansion.
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Adams J, Adler C, Ahammed Z, Allgower C, Amonett J, Anderson BD, Anderson M, Arkhipkin D, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Botje M, Boucham A, Brandin A, Bravar A, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Cardenas A, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Mora Corral M, Cramer JG, Crawford HJ, Derevschikov AA, Didenko L, Dietel T, Draper JE, Dunin VB, Dunlop JC, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Grachov O, Guedon M, Guertin SM, Gushin E, Gutierrez TD, Hallman TJ, Hardtke D, Harris JW, Heinz M, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kabana S, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Kollegger T, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Ma YG, Magestro D, Majka R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mitchell J, Molnar L, Moore CF, Morozov V, de Moura MM, Munhoz MG, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Picha R, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potrebenikova E, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Rykov V, Sakrejda I, Salur S, Sandweiss J, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schweda K, Seger J, Seyboth P, Shahaliev E, Shestermanov KE, Shimanskii SS, Simon F, Skoro G, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stephenson EJ, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Thompson M, Timoshenko S, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, Vander Molen AM, Vasiliev AN, Vigdor SE, Voloshin SA, Vznuzdaev M, Wang F, Wang Y, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Xu N, Xu Z, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Three-pion Hanbury Brown-Twiss correlations in relativistic heavy-ion collisions from the STAR experiment. PHYSICAL REVIEW LETTERS 2003; 91:262301. [PMID: 14754043 DOI: 10.1103/physrevlett.91.262301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2003] [Indexed: 05/24/2023]
Abstract
Data from the first physics run at the Relativistic Heavy-Ion Collider at Brookhaven National Laboratory, Au+Au collisions at sqrt[s(NN)]=130 GeV, have been analyzed by the STAR Collaboration using three-pion correlations with charged pions to study whether pions are emitted independently at freeze-out. We have made a high-statistics measurement of the three-pion correlation function and calculated the normalized three-particle correlator to obtain a quantitative measurement of the degree of chaoticity of the pion source. It is found that the degree of chaoticity seems to increase with increasing particle multiplicity.
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Adams J, Adler C, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Anderson M, Arkhipkin D, Averichev GS, Badyal SK, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bezverkhny BI, Bhardwaj S, Bhaskar P, Bhati AK, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Botje M, Boucham A, Brandin A, Bravar A, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen HF, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Das D, Das S, Derevschikov AA, Didenko L, Dietel T, Dong X, Draper JE, Drees KA, Du F, Dubey AK, Dunin VB, Dunlop JC, Dutta Majumdar MR, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Filip P, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Ganti MS, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grigoriev V, Gronstal S, Grosnick D, Guedon M, Guertin SM, Gupta A, Gushin E, Gutierrez TD, Hallman TJ, Hardtke D, Harris JW, Heinz M, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Huang SL, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kabana S, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Kollegger T, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li C, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Ma YG, Magestro D, Mahajan S, Mangotra LK, Mahapatra DP, Majka R, Manweiler R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mironov C, Mishra D, Mitchell J, Mohanty B, Molnar L, Moore CF, Mora-Corral MJ, Morozov V, de Moura MM, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Pal SK, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Phatak SC, Picha R, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Raniwala R, Raniwala S, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Ruan LJ, Rykov V, Sahoo R, Sakrejda I, Salur S, Sandweiss J, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shao M, Sharma M, Shestermanov KE, Shimanskii SS, Singaraju RN, Simon F, Skoro G, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus S, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trivedi MD, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasiliev AN, Vasiliev M, Vigdor SE, Viyogi YP, Voloshin SA, Waggoner W, Wang F, Wang G, Wang XL, Wang ZM, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu ZZ, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang HY, Zhang WM, Zhang ZP, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Transverse-momentum and collision-energy dependence of high-pT hadron suppression in Au+Au collisions at ultrarelativistic energies. PHYSICAL REVIEW LETTERS 2003; 91:172302. [PMID: 14611336 DOI: 10.1103/physrevlett.91.172302] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2003] [Revised: 09/03/2003] [Indexed: 05/24/2023]
Abstract
We report high statistics measurements of inclusive charged hadron production in Au+Au and p+p collisions at sqrt[s(NN)]=200 GeV. A large, approximately constant hadron suppression is observed in central Au+Au collisions for 5<p(T)<12 GeV/c. The collision energy dependence of the yields and the centrality and p(T) dependence of the suppression provide stringent constraints on theoretical models of suppression. Models incorporating initial-state gluon saturation or partonic energy loss in dense matter are largely consistent with observations. We observe no evidence of p(T)-dependent suppression, which may be expected from models incorporating jet attenuation in cold nuclear matter or scattering of fragmentation hadrons.
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Adams J, Adler C, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Anderson M, Arkhipkin D, Averichev GS, Badyal SK, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bezverkhny BI, Bhardwaj S, Bhaskar P, Bhati AK, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Botje M, Boucham A, Brandin A, Bravar A, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen HF, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Das D, Das S, Derevschikov AA, Didenko L, Dietel T, Dong X, Draper JE, Du F, Dubey AK, Dunin VB, Dunlop JC, Dutta Majumdar MR, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Filip P, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Ganti MS, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grigoriev V, Gronstal S, Grosnick D, Guedon M, Guertin SM, Gupta A, Gushin E, Gutierrez TD, Hallman TJ, Hardtke D, Harris JW, Heinz M, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Huang SL, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kabana S, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Koetke DD, Kollegger T, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li C, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Ma YG, Magestro D, Mahajan S, Mangotra LK, Mahapatra DP, Majka R, Manweiler R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mironov C, Mishra D, Mitchell J, Mohanty B, Molnar L, Moore CF, Mora-Corral MJ, Morozov V, de Moura MM, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Pal SK, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Phatak SC, Picha R, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Raniwala R, Raniwala S, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Ruan LJ, Rykov V, Sahoo R, Sakrejda I, Salur S, Sandweiss J, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shao M, Sharma M, Shestermanov KE, Shimanskii SS, Singaraju RN, Simon F, Skoro G, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus S, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trivedi MD, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasiliev AN, Vasiliev M, Vigdor SE, Viyogi YP, Voloshin SA, Waggoner W, Wang F, Wang G, Wang XL, Wang ZM, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu ZZ, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang HY, Zhang WM, Zhang ZP, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Evidence from d+Au measurements for final-state suppression of high-p(T) hadrons in Au+Au collisions at RHIC. PHYSICAL REVIEW LETTERS 2003; 91:072304. [PMID: 12935009 DOI: 10.1103/physrevlett.91.072304] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2003] [Revised: 08/08/2003] [Indexed: 05/24/2023]
Abstract
We report measurements of single-particle inclusive spectra and two-particle azimuthal distributions of charged hadrons at high transverse momentum (high p(T)) in minimum bias and central d+Au collisions at sqrt[s(NN)]=200 GeV. The inclusive yield is enhanced in d+Au collisions relative to binary-scaled p+p collisions, while the two-particle azimuthal distributions are very similar to those observed in p+p collisions. These results demonstrate that the strong suppression of the inclusive yield and back-to-back correlations at high p(T) previously observed in central Au+Au collisions are due to final-state interactions with the dense medium generated in such collisions.
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Rangan S, Ambe G, Borremans N, Zallocco D, Porter J. The Mumbai experience in building field level partnerships for DOTS implementation. Tuberculosis (Edinb) 2003; 83:165-72. [PMID: 12758207 DOI: 10.1016/s1472-9792(02)00070-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In February 1999, the Revised National Tuberculosis (TB) Control Programme (RNTCP) was implemented in the city of Mumbai after a pilot phase of 5 years. The city has a population of more than 12 million people and an estimated annual TB incidence of 21,000 cases, 8000 of these being infectious. This paper describes a partnership between the TB programme and a Non Governmental Organization (NGO), which began with a methodological analysis of the problems faced by the programme to help identify other key organizations, who might usefully be involved. The work focussed on "networking" to ensure the optimum use of existing resources. The problems encountered affected all levels of TB control from access to drug supply and treatment. The major issues related to an inadequate public health infrastructure resulting in poor technical and administrative support to field staff. There was confusion over roles of the health personnel in the TB programme and the public health facility, as well as poor technical performance. Partnerships were found to be useful in addressing the following areas: (1) the implementation of an external quality assurance scheme for sputum microscopy through involvement of microbiologists from large hospitals and research organizations; (2) training and capacity strengthening of programme and public health facility staff through innovative training and team building exercises organized by the programme, NGOs and the private sector; (3) development of Information, Education and Communication (IEC) material through partnerships with NGOs, and (4) the involvement of local NGOs and private doctors to increase case finding and to improve access to direct observation of treatment (DOT). The paper discusses the lessons learnt in this process and identifies some of the key issues in urban TB control, for consideration by policy makers.
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Reynolds F, Russell R, Porter J, Smeeton N. Does the use of low dose bupivacaine/opioid epidural infusion increase the normal delivery rate? Int J Obstet Anesth 2003; 12:156-63. [PMID: 15321477 DOI: 10.1016/s0959-289x(03)00008-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
To investigate whether using low dose epidural infusion improves the normal delivery rate, outcome of labour was studied in women with singleton vertex presentations randomised to receive either 0.0625% bupivacaine opioid, or plain bupivacaine 0.125% for labour. The infusion rate was titrated to maintain analgesia and a sensory level to T10. Data were analysed using the unpaired t test, Mann-Whitney U test and for categorical variables chi2 test. Adjusted odds ratios for factors significantly associated with non-normal delivery were calculated using stepwise logistic regression. There were 291 women in the low dose and 296 in the plain bupivacaine group. There were no significant differences between groups in parity, race, induction of labour, use of augmentation, cervical dilatation at epidural insertion, duration of any stage of labour or duration or volume of infusion. Total dose of bupivacaine (126 +/- 47 mg versus 91 +/- 32 mg) and the proportion of women with motor block at the end of labour (45% versus 27%) were significantly greater in the plain bupivacaine than in the low dose group (P < 0.0001). The adjusted odds ratios (95% CI) for factors significantly associated with non-normal delivery were primiparity: 4.68 (2.78-7.88), older maternal age: 1.1 (1.05-1.14), longer active second stage of labour: 1.01 (1.005-1.017), total bupivacaine dose: 1.01 (1.005-1.016) and greater cervical dilatation at epidural insertion 1.22 (1.08-1.37). Treatment group and motor block at the end of labour had no significant effect. We found no increase in normal delivery rate with low dose infusions.
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Marvel C, Porter J. Notes. Dimethyl Dithiolfurarate and Some copolymerization Reactions. J Org Chem 2003. [DOI: 10.1021/jo01083a628] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Adams J, Adler C, Ahammed Z, Allgower C, Amonett J, Anderson BD, Anderson M, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Boucham A, Brandin A, Bravar A, Cadman RV, Caines H, Calderónde la Barca Sánchez M, Cardenas A, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Corral MM, Cramer JG, Crawford HJ, Derevschikov AA, Didenko L, Dietel T, Draper JE, Dunin VB, Dunlop JC, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Grachov O, Grigoriev V, Guedon M, Guertin SM, Gushin E, Hallman TJ, Hardtke D, Harris JW, Heinz M, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Humanic TJ, Igo G, Ishihara A, Ivanshin YI, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Kollegger T, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Magestro D, Majka R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mitchell J, Moore CF, Morozov V, de Moura MM, Munhoz MG, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potrebenikova E, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Rykov V, Sakrejda I, Salur S, Sandweiss J, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schüttauf A, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shestermanov KE, Shimanskii SS, Simon F, Skoro G, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stephenson EJ, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, de Toledo AS, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Thompson M, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, Vander Molen AM, Vasilevski IM, Vasiliev AN, Vigdor SE, Voloshin SA, Wang F, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Xu N, Xu Z, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zoulkarneev R, Zubarev AN. Narrowing of the balance function with centrality in Au+Au collisions at the square root of SNN = 130 GeV. PHYSICAL REVIEW LETTERS 2003; 90:172301. [PMID: 12786068 DOI: 10.1103/physrevlett.90.172301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2003] [Indexed: 05/24/2023]
Abstract
The balance function is a new observable based on the principle that charge is locally conserved when particles are pair produced. Balance functions have been measured for charged particle pairs and identified charged pion pairs in Au+Au collisions at the square root of SNN = 130 GeV at the Relativistic Heavy Ion Collider using STAR. Balance functions for peripheral collisions have widths consistent with model predictions based on a superposition of nucleon-nucleon scattering. Widths in central collisions are smaller, consistent with trends predicted by models incorporating late hadronization.
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Svec F, Muehlenhein M, Porter J. The effects of phenylpropanolamine on Zucker rats selected for fat food preference. Nutr Neurosci 2003; 6:93-102. [PMID: 12722984 DOI: 10.1080/1028415031000094291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Treatments of human and rodent obesity frequently involve administration of amphetamine derivatives, much like phenylpropanolamine, which suppress food intake. The Zucker rat is a commonly employed model of youth-onset obesity in which the homozygous genotype manifests hyperphagia as well as other characteristics that parallel human obesity. Using a macronutrient selection procedure, we examined phenylpropanolamine's differential actions in controlling dietary intake, spontaneous open-field activity, and regional hypothalamic neurotransmitter levels in obese female Zucker rats of varying fat food preference. We hypothesized that phenylpropanolamine would alter hypothalamic monoamine levels differently in low-fat preferring and high-fat preferring Zucker rats, and hence affect feeding behavior and activity differently in these two groups. It was found that in high-fat preferring animals, phenylpropanolamine significantly decreased spontaneous open-field activity, decreased only carbohydrate caloric intake, and increased serotonin and 5-HIAA levels in the paraventricular nucleus (PVN). In low-fat preferring animals, phenylpropanolamine decreased carbohydrate, protein, and total caloric intake, had no significant effect of spontaneous activity, and increased serotonin and 5-hydroxyindole acetic acid levels in the PVN. Inherent and induced physiological differences of low-fat and high-fat preferring animals are discussed as well as phenylpropanolamine's potential in combination drug therapy for the treatment of human hyperphagic obesity.
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Porter J. Public Health Law and Ethics: a reader. Health Policy Plan 2003. [DOI: 10.1093/heapol/18.1.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Adler C, Ahammed Z, Allgower C, Amonett J, Anderson BD, Anderson M, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Boucham A, Brandin A, Bravar A, Cadman RV, Caines H, Calderón de la Barca Sánchez M, Cardenas A, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Corral MM, Cramer JG, Crawford HJ, Derevschikov AA, Didenko L, Dietel T, Draper JE, Dunin VB, Dunlop JC, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Grachov O, Grigoriev V, Guedon M, Gushin E, Hallman TJ, Hardtke D, Harris JW, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Humanic TJ, Igo G, Ishihara A, Ivanshin YI, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Kollegger T, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lakehal-Ayat L, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, LoCurto G, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Magestro D, Majka R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mitchell J, Moore CF, Morozov V, de Moura MM, Munhoz MG, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potrebenikova E, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Rykov V, Sakrejda I, Salur S, Sandweiss J, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schüttauf A, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shestermanov KE, Shimanskii SS, Simon F, Skoro G, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stephenson EJ, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Thompson M, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasilevski IM, Vasiliev AN, Vigdor SE, Voloshin SA, Wang F, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Xu N, Xu Z, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zoulkarneev R, Zubarev AN. Disappearance of back-to-back high-pT hadron correlations in central Au+Au collisions at sqrt[s NN ] =200 GeV. PHYSICAL REVIEW LETTERS 2003; 90:082302. [PMID: 12633419 DOI: 10.1103/physrevlett.90.082302] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2002] [Indexed: 05/24/2023]
Abstract
Azimuthal correlations for large transverse momentum charged hadrons have been measured over a wide pseudorapidity range and full azimuth in Au+Au and p+p collisions at sqrt[s(NN)]=200 GeV. The small-angle correlations observed in p+p collisions and at all centralities of Au+Au collisions are characteristic of hard-scattering processes previously observed in high-energy collisions. A strong back-to-back correlation exists for p+p and peripheral Au+Au. In contrast, the back-to-back correlations are reduced considerably in the most central Au+Au collisions, indicating substantial interaction as the hard-scattered partons or their fragmentation products traverse the medium.
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Adler C, Ahammed Z, Allgower C, Amonett J, Anderson BD, Anderson M, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Boucham A, Brandin A, Bravar A, Cadman RV, Caines H, Calderón De La Barca Sánchez M, Cardenas A, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Deng WS, Derevschikov AA, Didenko L, Dietel T, Draper JE, Dunin VB, Dunlop JC, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Faivre J, Filimonov K, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Grachov O, Grigoriev V, Guedon M, Gushin E, Hallman TJ, Hardtke D, Harris JW, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Humanic TJ, Igo G, Ishihara A, Ivanshin YI, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lakehal-Ayat L, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, LoCurto G, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Majka R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mitchell J, Moiseenko VA, Moore CF, Morozov V, De Moura MM, Munhoz MG, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potrebenikova E, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Rykov V, Sakrejda I, Salur S, Sandweiss J, Saulys AC, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schüttauf A, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shestermanov KE, Shimanskii SS, Shvetcov VS, Skoro G, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stephenson EJ, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto De Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thomas JH, Thompson M, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trofimov V, Tsai O, Ullrich T, Underwood DG, Buren GV, VanderMolen AM, Vasilevski IM, Vasiliev AN, Vigdor SE, Voloshin SA, Wang F, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Xu N, Xu Z, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zoulkarneev R, Zubarev AN. Azimuthal anisotropy and correlations in the hard scattering regime at RHIC. PHYSICAL REVIEW LETTERS 2003; 90:032301. [PMID: 12570484 DOI: 10.1103/physrevlett.90.032301] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2002] [Indexed: 05/24/2023]
Abstract
Azimuthal anisotropy (v(2)) and two-particle angular correlations of high p(T) charged hadrons have been measured in Au+Au collisions at sqrt[s(NN)]=130 GeV for transverse momenta up to 6 GeV/c, where hard processes are expected to contribute significantly. The two-particle angular correlations exhibit elliptic flow and a structure suggestive of fragmentation of high p(T) partons. The monotonic rise of v(2)(p(T)) for p(T)<2 GeV/c is consistent with collective hydrodynamical flow calculations. At p(T)>3 GeV/c, a saturation of v(2) is observed which persists up to p(T)=6 GeV/c.
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Sangchot P, Sharma S, Chetsawang B, Porter J, Govitrapong P, Ebadi M. Deferoxamine attenuates iron-induced oxidative stress and prevents mitochondrial aggregation and alpha-synuclein translocation in SK-N-SH cells in culture. Dev Neurosci 2003; 24:143-53. [PMID: 12401952 DOI: 10.1159/000065700] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
One of the defining characteristics of neurodegenerative diseases, including Parkinson's disease, is an abnormal accumulation of iron in the affected brain areas. By using SK-N-SH, a dopaminergic cell line, we have found that iron (100-250 microM FeSO(4)) decreased cell viability, increased lipid peroxidation, and the said effects were blocked by deferoxamine (DFO: 10 microM). Furthermore, DFO, in the absence of iron, enhanced the level of adenosine triphosphate (ATP), but caused chromatin condensation and cell death. Morphological studies revealed that iron (50-100 microM) altered mitochondrial morphology, disrupted nuclear membrane, and translocated alpha-synuclein from perinuclear region into the disrupted nucleus. The results of these studies suggest that DFO is able to block and attenuate iron-mediated oxidative stress. However, in the absence of excess iron, DFO itself may have deleterious effects on the morphology and hence integrity of dopaminergic neurons.
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219
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Adler C, Ahammed Z, Allgower C, Amonett J, Anderson BD, Anderson M, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bichsel H, Bland LC, Blyth CO, Bonner BE, Boucham A, Brandin A, Bravar A, Cadman RV, Caines H, Calderón de la Barca Sánchez M, Cardenas A, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Deng WS, Derevschikov AA, Didenko L, Dietel T, Draper JE, Dunin VB, Dunlop JC, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Filimonov K, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Grachov O, Grigoriev V, Guedon M, Gushin E, Hallman TJ, Hardtke D, Harris JW, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Humanic TJ, Igo G, Ishihara A, Ivanshin YI, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lakehal-Ayat L, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, LoCurto G, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Majka R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mitchell J, Moiseenko VA, Moore CF, Morozov V, de Moura MM, Munhoz MG, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Nystrand J, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potrebenikova E, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Roy C, Rykov V, Sakrejda I, Salur S, Sandweiss J, Saulys AC, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schüttauf A, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shestermanov KE, Shimanskii SS, Shvetcov VS, Skoro G, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stephenson EJ, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thomas JH, Thompson M, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasilevski IM, Vasiliev AN, Vigdor SE, Voloshin SA, Wang F, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Xu N, Xu Z, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zoulkarneev R, Zubarev AN. Coherent rho(0) production in ultraperipheral heavy-ion collisions. PHYSICAL REVIEW LETTERS 2002; 89:272302. [PMID: 12513197 DOI: 10.1103/physrevlett.89.272302] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2002] [Indexed: 05/24/2023]
Abstract
The STAR Collaboration reports the first observation of exclusive rho(0) photoproduction, AuAu-->AuAurho(0), and rho(0) production accompanied by mutual nuclear Coulomb excitation, AuAu-->Au*Au*rho(0), in ultraperipheral heavy-ion collisions. The rho(0) have low transverse momenta, consistent with coherent coupling to both nuclei. The cross sections at sqrt[s(NN)]=130 GeV agree with theoretical predictions treating rho(0) production and Coulomb excitation as independent processes.
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Adler C, Ahammed Z, Allgower C, Amonett J, Anderson BD, Anderson M, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Boucham A, Brandin A, Bravar A, Cadman RV, Caines H, Calderón de la Barca Sánchez M, Cardenas A, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Deng WS, Derevschikov AA, Didenko L, Dietel T, Draper JE, Dunin VB, Dunlop JC, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Faivre J, Filimonov K, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Grachov O, Grigoriev V, Guedon M, Gushin E, Hallman TJ, Hardtke D, Harris JW, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Humanic TJ, Igo G, Ishihara A, Ivanshin YI, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lakehal-Ayat L, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, LoCurto G, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Majka R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mitchell J, Moiseenko VA, Moore CF, Morozov V, de Moura MM, Munhoz MG, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potrebenikova E, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Rykov V, Sakrejda I, Salur S, Sandweiss J, Saulys AC, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schüttauf A, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shestermanov KE, Shimanskii SS, Shvetcov VS, Skoro G, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stephenson EJ, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thomas JH, Thompson M, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasilevski IM, Vasiliev AN, Vigdor SE, Voloshin SA, Wang F, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Xu N, Xu Z, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zoulkarneev R, Zubarev AN. Centrality dependence of high-p(T) hadron suppression in Au+Au collisions at sqrt[s(NN)]=130 GeV. PHYSICAL REVIEW LETTERS 2002; 89:202301. [PMID: 12443470 DOI: 10.1103/physrevlett.89.202301] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2002] [Indexed: 05/24/2023]
Abstract
Inclusive transverse momentum distributions of charged hadrons within 0.2<p(T)<6.0 GeV/c have been measured over a broad range of centrality for Au+Au collisions at sqrt[s(NN)]=130 GeV. Hadron yields are suppressed at high p(T) in central collisions relative to peripheral collisions and to a nucleon-nucleon reference scaled for collision geometry. Peripheral collisions are not suppressed relative to the nucleon-nucleon reference. The suppression varies continuously at intermediate centralities. The results indicate significant nuclear medium effects on high-p(T) hadron production in heavy-ion collisions at high energy.
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Adler C, Ahammed Z, Allgower C, Amonett J, Anderson BD, Anderson M, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Boucham A, Brandin A, Bravar A, Cadman RV, Caines H, Calderón de la Barca Sánchez M, Cardenas A, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Deng WS, Derevschikov AA, Didenko L, Dietel T, Draper JE, Dunin VB, Dunlop JC, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Filimonov K, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Grachov O, Grigoriev V, Guedon M, Gushin E, Hallman TJ, Hardtke D, Harris JW, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Humanic TJ, Igo G, Ishihara A, Ivanshin YI, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lakehal-Ayat L, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, LoCurto G, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Majka R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mitchell J, Moiseenko VA, Moore CF, Morozov V, de Moura MM, Munhoz MG, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potrebenikova E, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Rykov V, Sakrejda I, Salur S, Sandweiss J, Saulys AC, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schüttauf A, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shestermanov KE, Shimanskii SS, Shvetcov VS, Skoro G, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stephenson EJ, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thomas JH, Thompson M, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasilevski IM, Vasiliev AN, Vigdor SE, Voloshin SA, Wang F, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Xu N, Xu Z, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zoulkarneev R, Zubarev AN. Azimuthal anisotropy of K(0)(S) and Lambda+Lambda production at midrapidity from Au+Au collisions at sqrt[s(NN)]=130 GeV. PHYSICAL REVIEW LETTERS 2002; 89:132301. [PMID: 12225018 DOI: 10.1103/physrevlett.89.132301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2002] [Indexed: 05/23/2023]
Abstract
We report STAR results on the azimuthal anisotropy parameter v(2) for strange particles K(0)(S), Lambda, and Lambda at midrapidity in Au+Au collisions at sqrt[s(NN)]=130 GeV at the Relativistic Heavy Ion Collider. The value of v(2) as a function of transverse momentum, p(t), of the produced particle and collision centrality is presented for both particles up to p(t) approximately 3.0 GeV/c. A strong p(t) dependence in v(2) is observed up to 2.0 GeV/c. The v(2) measurement is compared with hydrodynamic model calculations. The physics implications of the p(t) integrated v(2) magnitude as a function of particle mass are also discussed.
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Adler C, Ahammed Z, Allgower C, Amonett J, Anderson BD, Anderson M, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Boucham A, Brandin A, Bravar A, Cadman RV, Caines H, Calderón de la Barca Sánchez M, Cardenas A, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Deng WS, Derevschikov AA, Didenko L, Dietel T, Draper JE, Dunin VB, Dunlop JC, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Faivre J, Filimonov K, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Grachov O, Grigoriev V, Guedon M, Gushin E, Hallman TJ, Hardtke D, Harris JW, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Humanic TJ, Igo G, Ishihara A, Ivanshin YI, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lakehal-Ayat L, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, LoCurto G, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Majka R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mitchell J, Moiseenko VA, Moore CF, Morozov V, de Moura MM, Munhoz MG, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potrebenikova E, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Rykov V, Sakrejda I, Salur S, Sandweiss J, Saulys AC, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schüttauf A, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shestermanov KE, Shimanskii SS, Shvetcov VS, Skoro G, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stephenson EJ, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, de Toledo AS, Szarwas P, Tai A, Takahashi J, Tang AH, Thomas JH, Thompson M, Tikhomirov V, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasilevski IM, Vasiliev AN, Vigdor SE, Voloshin SA, Wang F, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Xu N, Xu Z, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zoulkarneev R, Zubarev AN. Midrapidity Lambda and Lambda(macro) production in Au+Au collisions at the square root of [s(NN)]=130 GeV. PHYSICAL REVIEW LETTERS 2002; 89:092301. [PMID: 12190390 DOI: 10.1103/physrevlett.89.092301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2002] [Indexed: 05/23/2023]
Abstract
We report the first measurement of strange (Lambda) and antistrange (Lambda macro) baryon production from square root of [s(NN)]=130 GeV Au+Au collisions at the Relativistic Heavy Ion Collider (RHIC). Rapidity density and transverse mass distributions at midrapidity are presented as a function of centrality. The yield of Lambda and Lambda; hyperons is found to be approximately proportional to the number of negative hadrons. The production of Lambda; hyperons relative to negative hadrons increases very rapidly with transverse momentum. The magnitude of the increase cannot be described by existing hadronic string fragmentation models alone.
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Högenauer C, Aichbichler B, Santa Ana C, Porter J, Fordtran J. Effect of octreotide on fluid absorption and secretion by the normal human jejunum and ileum in vivo. Aliment Pharmacol Ther 2002; 16:769-77. [PMID: 11929395 DOI: 10.1046/j.1365-2036.2002.01228.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
BACKGROUND We hypothesized that part of the non-specific antidiarrhoeal effect of octreotide is mediated by a proabsorptive or antisecretory effect on small intestinal active electrolyte transport. METHODS To measure the effect of octreotide on net absorption, the jejunum and ileum of normal human subjects were perfused with a balanced electrolyte solution; to measure the effect of octreotide on normal active chloride secretion, the jejunum was perfused with a bicarbonate-free solution. RESULTS During perfusion of a balanced electrolyte solution, octreotide increased basal net fluid absorption in the jejunum and ileum by about 40 mL/h per 30 cm. In the jejunum, octreotide markedly inhibited basal and sham feeding-stimulated active chloride secretion and inhibited water secretion by 28 and 51 mL/h per 30 cm, respectively. CONCLUSIONS Octreotide causes an increase in the net epithelial cell absorption rate of a balanced electrolyte solution in the normal jejunum and ileum. In the jejunum, this proabsorptive effect is mediated mainly by the reduction of normal active electrolyte secretion, rather than by stimulation of normal active electrolyte absorption. These results support the hypothesis that part of the antidiarrhoeal action of octreotide is due to its effects on active electrolyte transport mechanisms by normal epithelial cells of the small intestine.
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Adler C, Ahammed Z, Allgower C, Amonett J, Anderson BD, Anderson M, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bichsel H, Bland LC, Blyth CO, Bonner BE, Boucham A, Brandin A, Cadman RV, Caines H, Calderón de la Barca Sánchez M, Cardenas A, Carroll J, Castillo J, Castro M, Cebra D, Chattopadhyay S, Chen ML, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, DeMello M, Deng WS, Derevschikov AA, Didenko L, Draper JE, Dunin VB, Dunlop JC, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Filimonov K, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Grabski J, Grachov O, Grigoriev V, Guedon M, Gushin E, Hallman TJ, Hardtke D, Harris JW, Heffner M, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Humanic TJ, Hümmler H, Igo G, Ishihara A, Ivanshin YI, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd E, Kaneta M, Kaplan M, Keane D, Kisiel A, Klay J, Klein SR, Klyachko A, Konstantinov AS, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lakehal-Ayat L, Lamas-Valverde J, Lamont MA, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, LoCurto G, Long H, Longacre RS, Lopez-Noriega M, Love WA, Lynn D, Majka R, Margetis S, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mitchell J, Moiseenko VA, Moore CF, Morozov V, de Moura MM, Munhoz MG, Mutchler GS, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Platner E, Pluta J, Porile N, Porter J, Poskanzer AM, Potrebenikova E, Prindle D, Pruneau C, Radomski S, Rai G, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Roy C, Rykov V, Sakrejda I, Sandweiss J, Saulys AC, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schüttauf A, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shestermanov KE, Shimanskii SS, Shvetcov VS, Skoro G, Smirnov N, Snellings R, Sowinski J, Spinka HM, Srivastava B, Stephenson EJ, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AA, Sugarbaker E, Suire C, Sumbera M, Symons TJ, de Toledo AS, Szarwas P, Takahashi J, Tang AH, Thomas JH, Thompson M, Tikhomirov V, Trainor TA, Trentalange S, Tribble RE, Tokarev M, Tonjes MB, Trofimov V, Tsai O, Turner K, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vanyashin A, Vasilevski IM, Vasiliev AN, Vigdor SE, Voloshin SA, Wang F, Ward H, Watson JW, Wells R, Wenaus T, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Xu N, Xu Z, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zoulkarneev R, Zubarev AN. Measurement of inclusive antiprotons from Au+Au collisions at square root of s(NN) = 130 GeV. PHYSICAL REVIEW LETTERS 2001; 87:262302. [PMID: 11800830 DOI: 10.1103/physrevlett.87.262302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2001] [Indexed: 05/23/2023]
Abstract
We report the first measurement of inclusive antiproton production at midrapidity in Au+Au collisions at square root of s(NN) = 130 GeV by the STAR experiment at RHIC. The antiproton transverse mass distributions in the measured transverse momentum range of 0.25<p( perpendicular)<0.95 GeV/c are found to fall less steeply for more central collisions. The extrapolated antiproton rapidity density is found to scale approximately with the negative hadron multiplicity density.
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Adler C, Ahammed Z, Allgower C, Amonett J, Anderson BD, Anderson M, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bichsel H, Bland LC, Blyth CO, Bonner BE, Boucham A, Brandin A, Cadman RV, Caines H, Calderón de la Barca Sánchez M, Cardenas A, Carroll J, Castillo J, Castro M, Cebra D, Chattopadhyay S, Chen ML, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, DeMello M, Deng WS, Derevschikov AA, Didenko L, Draper JE, Dunin VB, Dunlop JC, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Grabski J, Grachov O, Greiner D, Grigoriev V, Guedon M, Gushin E, Hallman TJ, Hardtke D, Harris JW, Heffner M, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Humanic TJ, Hümmler H, Igo G, Ishihara A, Ivanshin YI, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd E, Kaneta M, Kaplan M, Keane D, Kisiel A, Klay J, Klein SR, Klyachko A, Konstantinov AS, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lakehal-Ayat L, Lamas-Valverde J, Lamont MA, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lebedev A, LeCompte T, Lednický R, Leontiev VM, LeVine MJ, Li Q, Li Q, Lindenbaum SJ, Lisa MA, Ljubicic T, Llope WJ, LoCurto G, Long H, Longacre RS, Lopez-Noriega M, Love WA, Lynn D, Majka R, Margetis S, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mitchell J, Moiseenko VA, Moltz D, Moore CF, Morozov V, de Moura MM, Munhoz MG, Mutchler GS, Nelson JM, Nevski P, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Platner E, Pluta J, Porile N, Porter J, Poskanzer AM, Potrebenikova E, Prindle D, Pruneau C, Radomski S, Rai G, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Roy C, Russ D, Rykov V, Sakrejda I, Sandweiss J, Saulys AC, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schüttauf A, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shestermanov KE, Shimanskii SS, Shvetcov VS, Skoro G, Smirnov N, Snellings R, Sowinski J, Spinka HM, Srivastava B, Stephenson EJ, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AA, Sugarbaker E, Suire C, Sumbera M, Symons TJ, de Toledo AS, Szarwas P, Takahashi J, Tang AH, Thomas JH, Tikhomirov V, Trainor TA, Trentalange S, Tokarev M, Tonjes MB, Trofimov V, Tsai O, Turner K, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vanyashin A, Vasilevski IM, Vasiliev AN, Vigdor SE, Voloshin SA, Wang F, Ward H, Watson JW, Wells R, Wenaus T, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Xu N, Xu Z, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yokosawa A, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zoulkarneev R, Zubarev AN. d Macro and (3)He macro production in square root of s(NN) = 130 GeV Au+Au collisions. PHYSICAL REVIEW LETTERS 2001; 87:262301. [PMID: 11800829 DOI: 10.1103/physrevlett.87.262301] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2001] [Indexed: 05/23/2023]
Abstract
The first measurements of light antinucleus production in Au+Au collisions at the Relativistic Heavy-Ion Collider are reported. The observed production rates for d macro and (3)He macro are much larger than in lower energy nucleus-nucleus collisions. A coalescence model analysis of the yields indicates that there is little or no increase in the antinucleon freeze-out volume compared to collisions at CERN SPS energy. These analyses also indicate that the (3)He macro freeze-out volume is smaller than the d macro freeze-out volume.
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