Identified charged particle spectra and yields in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mtext>Au</mml:mtext><mml:mo>+</mml:mo><mml:mtext>Au</mml:mtext></mml:mrow></mml:math>collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:msub><mml:mi mathvariant="bold-italic">s</mml:mi><mml:mrow><mml:mi mathvariant="bold-italic">N</mml:mi><mml:mi mathvariant="bold-italic">N</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mml:mn><mml:mspace width="0.3em"/><mml:mtext>GeV</mml:mtext></mml:mrow></mml:math>

Stephen Adler(Brookhaven National Laboratory), S. Afanasiev(Joint Institute for Nuclear Research), C. Aidala(Brookhaven National Laboratory), N. N. Ajitanand(Stony Brook University), Y. Akiba(High Energy Accelerator Research Organization), J. Alexander(Stony Brook University), R. Amirikas(Florida State University), L. Aphecetche(Centre National de la Recherche Scientifique), S. H. Aronson(Brookhaven National Laboratory), R. Averbeck(Stony Brook University), T. C. Awes(Oak Ridge National Laboratory), R. Azmoun(Stony Brook University), V. Babintsev(Institute for High Energy Physics), A. Baldisseri(Commissariat à l'Énergie Atomique et aux Énergies Alternatives), K. N. Barish(University of California, Riverside), P. D. Barnes(Los Alamos National Laboratory), B. Bassalleck(University of New Mexico), S. Bathe(University of Münster), S. Batsouli(Columbia University), V. Baublis(Petersburg Nuclear Physics Institute), A. Bazilevsky(Brookhaven National Laboratory), S. Belikov(Iowa State University), Y. Berdnikov, S. Bhagavatula(Iowa State University), J. G. Boissevain(Los Alamos National Laboratory), H. Borel(Commissariat à l'Énergie Atomique et aux Énergies Alternatives), S. Borenstein(Centre National de la Recherche Scientifique), M. L. Brooks(Los Alamos National Laboratory), D. S. Brown(New Mexico State University), N. Bruner(University of New Mexico), D. Bucher(University of Münster), H. Buesching(University of Münster), V. Bumazhnov(Institute for High Energy Physics), G. Bunce(Brookhaven National Laboratory), J. M. Burward-Hoy(Lawrence Livermore National Laboratory), S. Butsyk(Stony Brook University), X. Camard(Centre National de la Recherche Scientifique), J.-S. Chai(Korea Atomic Energy Research Institute), P. Chand(Bhabha Atomic Research Centre), W. C. Chang(Institute of Physics, Academia Sinica), S. Chernichenko(Institute for High Energy Physics), C. Y.(Columbia University), J. Chiba(High Energy Accelerator Research Organization), M. Chiu(Columbia University), I. J. Choi(Yonsei University), J. B. Choi(Kangnam University), R. K. Choudhury(Bhabha Atomic Research Centre), T. Chujo(Brookhaven National Laboratory), V. Cianciolo(Oak Ridge National Laboratory), Y. Cobigo(Commissariat à l'Énergie Atomique et aux Énergies Alternatives), B. Cole(Columbia University), P. Constantin(Iowa State University), D. d’Enterria(Centre National de la Recherche Scientifique), G. David(Brookhaven National Laboratory), H. Delagrange(Centre National de la Recherche Scientifique), A. Denisov(Institute for High Energy Physics), A. Deshpande(Brookhaven National Laboratory), E. J. Desmond(Brookhaven National Laboratory), O. Dietzsch(Universidade de São Paulo), O. Drapier(Centre National de la Recherche Scientifique), A. Drees(Stony Brook University), R. du Rietz(Lund University), A. Durum(Institute for High Energy Physics), Dipanwita Dutta(Bhabha Atomic Research Centre), Y. V. Efremenko(Oak Ridge National Laboratory), K. El Chenawi(Vanderbilt University), A. Enokizono(Hiroshima University), H. En‘yo(Brookhaven National Laboratory), S. Esumi(University of Tsukuba), L. Ewell(Brookhaven National Laboratory), D. E. Fields(University of New Mexico), F. Fleuret(Centre National de la Recherche Scientifique), S. Fokin(Kurchatov Institute), B. D. Fox(Brookhaven National Laboratory), Z. Fraenkel(Weizmann Institute of Science), J. E. Frantz(Columbia University), A. Franz(Brookhaven National Laboratory), A. D. Frawley(Florida State University), S.-Y. Fung(University of California, Riverside), S. Garpman(Lund University), Tarun Kanti Ghosh(Vanderbilt University), A. Glenn(University of Tennessee at Knoxville), G. Gogiberidze(University of Tennessee at Knoxville), M. Gonin(Centre National de la Recherche Scientifique), J. Gösset(Commissariat à l'Énergie Atomique et aux Énergies Alternatives), Y. Goto(Brookhaven National Laboratory), R. Granier de Cassagnac(Centre National de la Recherche Scientifique), N. Grau(Iowa State University), S. V. Greene(Vanderbilt University), M. Große Perdekamp(Brookhaven National Laboratory), W. Guryn(Brookhaven National Laboratory), H.-Å. Gustafsson(Lund University), T. Hachiya(Hiroshima University), J. S. Haggerty(Brookhaven National Laboratory), H. Hamagaki(Tokyo University of Science), A. G. Hansen(Los Alamos National Laboratory), E. P. Hartouni(Lawrence Livermore National Laboratory), M. Harvey(Brookhaven National Laboratory), R. Hayano(Tokyo University of Science), X. He(Georgia State University), M. Heffner(Lawrence Livermore National Laboratory), T. K. Hemmick(Stony Brook University), X. He(Stony Brook University), M. Hibino(Waseda University), J. C. Hill(Iowa State University), W. Holzmann(Stony Brook University), K. Homma(Hiroshima University), B. Hong(Korea University), A. Hoover(New Mexico State University), T. Ichihara(Brookhaven National Laboratory), V. V. Ikonnikov(Kurchatov Institute), K. Imai(Kyoto University), D. Isenhower(Abilene Christian University), M. Ishihara(RIKEN), M. Issah(Stony Brook University), A. Isupov(Joint Institute for Nuclear Research), B. V. Jacak(Stony Brook University), W. Jang(Korea University), Y. Jeong(Kangnam University), J. Jia(Stony Brook University), O. Jinnouchi(RIKEN), B. M. Johnson(Brookhaven National Laboratory), S. C. Johnson(Lawrence Livermore National Laboratory), K. Joo(Myongji University), D. Jouan(Université Paris-Sud), S. Kametani(Waseda University), N. Kamihara(Tokyo Institute of Technology), J. H. Kang(Yonsei University), S. S. Kapoor(Bhabha Atomic Research Centre), K. Katou(Waseda University), S. Kelly(Columbia University), B. Khachaturov(Weizmann Institute of Science), A. Khanzadeev(Petersburg Nuclear Physics Institute), Jun Kikuchi(Waseda University), D. H. Kim(Myongji University), D. J. Kim(Yonsei University), D. W. Kim(Kangnam University), E. J. Kim(Seoul National University), G.-B. Kim(Centre National de la Recherche Scientifique), H. J. Kim(Yonsei University), E. Kistenev(Brookhaven National Laboratory), A. Kiyomichi(University of Tsukuba), K. Kiyoyama(Nagasaki Institute of Applied Science), C. Klein-Boesing(University of Münster), Hisao Kobayashi(Brookhaven National Laboratory), L. Kochenda(Petersburg Nuclear Physics Institute), V. Kochetkov(Institute for High Energy Physics), D. Koehler(University of New Mexico), T. Kohama(Hiroshima University), M. Kopytine(Stony Brook University), D. Kotchetkov(University of California, Riverside), A. Kozlov(Weizmann Institute of Science), P. J. Kroon(Brookhaven National Laboratory), C. H. Kuberg(Los Alamos National Laboratory), K. Kurita(Brookhaven National Laboratory), Y. Kuroki(University of Tsukuba), M. J. Kweon(Korea University), Y. Kwon(Yonsei University), G. S. Kyle(New Mexico State University), R. Lacey(Stony Brook University), V. Ladygin(Joint Institute for Nuclear Research), J. G. Lajoie(Iowa State University), A. Lebedev(Iowa State University), S. Leckey(Stony Brook University), D. M. Lee(Los Alamos National Laboratory), S. Lee(Kangnam University), M. J. Leitch(Los Alamos National Laboratory), X. H. Li(University of California, Riverside), H. Lim(Seoul National University), A. Litvinenko(Joint Institute for Nuclear Research), M. X. Liu(Los Alamos National Laboratory), Y. Liu(Université Paris-Sud), C. Maguire(Vanderbilt University), Y. I. Makdisi(Brookhaven National Laboratory), A. Malakhov(Joint Institute for Nuclear Research), V. I. Manko(Kurchatov Institute), Y. Mao(China Institute of Atomic Energy), G. Martı́nez(Centre National de la Recherche Scientifique), M. Marx(Stony Brook University), H. Masui(University of Tsukuba), F. Matathias(Stony Brook University), T. Matsumoto(Waseda University), P. L. McGaughey(Los Alamos National Laboratory), E. Melnikov(Institute for High Energy Physics), F. Messer(Stony Brook University), Y. Miake(University of Tsukuba), J. Milan(Stony Brook University), T. E. Miller(Vanderbilt University), A. Milov(Weizmann Institute of Science), S. Mioduszewski(Brookhaven National Laboratory), R. E. Mischke(Los Alamos National Laboratory), G. C. Mishra(Georgia State University), J. T. Mitchell(Brookhaven National Laboratory), A. K. Mohanty(Bhabha Atomic Research Centre), D. P. Morrison(Brookhaven National Laboratory), J. M. Moss(Los Alamos National Laboratory), F. Mühlbacher(Stony Brook University), D. Mukhopadhyay(Weizmann Institute of Science), M. Muniruzzaman(University of California, Riverside), J. Murata(Brookhaven National Laboratory), S. Nagamiya(High Energy Accelerator Research Organization), J. L. Nagle(Columbia University), T. Nakamura(Hiroshima University), Basanta Kumar Nandi(University of California, Riverside), M. Nara(University of Tsukuba), J. Newby(University of Tennessee at Knoxville), P. Nilsson(Lund University), A. S. Nyanin(Kurchatov Institute), J. Nystrand(Lund University), E. O’Brien(Brookhaven National Laboratory), C. A. Ogilvie(Iowa State University), H. Ohnìshì(Brookhaven National Laboratory), I. D. Ojha(Vanderbilt University), K. Okada(RIKEN), M. Ono(University of Tsukuba), V. Onuchìn(Institute for High Energy Physics), A. Oskarsson(Lund University), I. Otterlund(Lund University), K. Oyama(Tokyo University of Science), K. Ozawa(Tokyo University of Science), D. Pal(Weizmann Institute of Science), A. P. T. Palounek(Los Alamos National Laboratory), V. Pantuev(Stony Brook University), V. Papavassiliou(New Mexico State University), J. Park(Seoul National University), A. Parmar(University of New Mexico), S. F. Pate(New Mexico State University), T. Peitzmann(University of Münster), J. C. Peng(Los Alamos National Laboratory), V. Peresedov(Joint Institute for Nuclear Research), C. Pinkenburg(Brookhaven National Laboratory), R. P. Pisani(Brookhaven National Laboratory), F. Plasil(Oak Ridge National Laboratory), M. L. Purschke(Brookhaven National Laboratory), Anurag Purwar(Stony Brook University), J. Rak(Iowa State University), I. Ravinovich(Weizmann Institute of Science), K. F. Read(Oak Ridge National Laboratory), M. Reuter(Stony Brook University), K. Reygers(University of Münster), V. Riabov(Petersburg Nuclear Physics Institute), Y. Riabov(Petersburg Nuclear Physics Institute), G. Roche(Centre National de la Recherche Scientifique), A. Romana(Centre National de la Recherche Scientifique), M. Rosati(Iowa State University), P. Rosnet(Centre National de la Recherche Scientifique), S. S. Ryu(Yonsei University), M. E. Sadler(Abilene Christian University), N. Saito(Brookhaven National Laboratory), T. Sakaguchi(Waseda University), M. Sakai(Nagasaki Institute of Applied Science), S. Sakai(University of Tsukuba), V. Samsonov(Petersburg Nuclear Physics Institute), L. Sanfratello(University of New Mexico), R. Santo(University of Münster), H. Sato(Kyoto University), S. Sato(University of Tsukuba), S. Sawada(High Energy Accelerator Research Organization), Y. Schütz(Centre National de la Recherche Scientifique), V. Semenov(Institute for High Energy Physics), R. Seto(University of California, Riverside), M. R. Shaw(Los Alamos National Laboratory), T. K. Shea(Brookhaven National Laboratory), T.-A. Shibata(Tokyo Institute of Technology), K. Shigaki(Hiroshima University), T. Shiina(Los Alamos National Laboratory), C. L. Silva(Universidade de São Paulo), D. Silvermyr(Los Alamos National Laboratory), K. S. Sim(Korea University), C. P. Singh(Banaras Hindu University), V. Singh(Banaras Hindu University), M. Sivertz(Brookhaven National Laboratory), A. Soldatov(Institute for High Energy Physics), R. A. Soltz(Lawrence Livermore National Laboratory), W. E. Sondheim(Los Alamos National Laboratory), S. P. Sørensen(University of Tennessee at Knoxville), I. V. Sourikova(Brookhaven National Laboratory), F. Staley(Commissariat à l'Énergie Atomique et aux Énergies Alternatives), P. W. Stankus(Oak Ridge National Laboratory), E. Stenlund(Lund University), M. Stepanov(New Mexico State University), A. Ster(Institute for Particle and Nuclear Physics), S. P. Stoll(Brookhaven National Laboratory), T. Sugitate(Hiroshima University), J. P. Sullivan(Los Alamos National Laboratory), E. M. Takagui(Universidade de São Paulo), A. Taketani(Brookhaven National Laboratory), M. Tamai(Waseda University), К. Таnака(High Energy Accelerator Research Organization), Y. Tanaka(Nagasaki Institute of Applied Science), K. Tanida(RIKEN), M. J. Tannenbaum(Brookhaven National Laboratory), P. Tarján(University of Debrecen), J. D. Tepe(Los Alamos National Laboratory), T. L. Thomas(University of New Mexico), J. Tojo(Kyoto University), H. Torii(Kyoto University), R. S. Towell(Abilene Christian University), I. Tserruya(Weizmann Institute of Science), H. Tsuruoka(University of Tsukuba), S. K. Tuli(Banaras Hindu University), H. Tydesjö(Lund University), N. Tyurin(Institute for High Energy Physics), H. W. van Hecke(Los Alamos National Laboratory), J. Velkovska(Brookhaven National Laboratory), M. Velkovsky(Stony Brook University), L. Villatte(University of Tennessee at Knoxville), А. Виноградов(Kurchatov Institute), М. А. Volkov(Kurchatov Institute), E. Vznuzdaev(Petersburg Nuclear Physics Institute), X. R. Wang(Georgia State University), Yosuke Watanabe(Brookhaven National Laboratory), S. N. White(Brookhaven National Laboratory), F. K. Wohn(Iowa State University), C. Woody(Brookhaven National Laboratory), W. Xie(University of California, Riverside), Y. Yang(China Institute of Atomic Energy), A. Yanovich(Institute for High Energy Physics), S. Yokkaichi(Brookhaven National Laboratory), G. R. Young(Oak Ridge National Laboratory), I. E. Yushmanov(Kurchatov Institute), W. A. Zajc(Columbia University), C. Zhang(Columbia University), S. Zhou(China Institute of Atomic Energy), S.J. Zhou(Weizmann Institute of Science), L. Zolin(Joint Institute for Nuclear Research)
Physical Review C
March 29, 2004
10.1103/physrevc.69.034909
Cited by 770Open Access
Full Text

Abstract

The centrality dependence of transverse momentum distributions and yields for pi^+/-, K^+/-, p and p^bar in Au+Au collisions at sqrt(s_NN) = 200 GeV at mid-rapidity are measured by the PHENIX experiment at RHIC. We observe a clear particle mass dependence of the shapes of transverse momentum spectra in central collisions below ~ 2 GeV/c in p_T. Both mean transverse momenta and particle yields per participant pair increase from peripheral to mid-central and saturate at the most central collisions for all particle species. We also measure particle ratios of pi^-/pi^+, K^-/K^+, p^bar/p, K/pi, p/pi and p^bar/pi as a function of p_T and collision centrality. The ratios of equal mass particle yields are independent of p_T and centrality within the experimental uncertainties. In central collisions at intermediate transverse momenta ~ 1.5-4.5 GeV/c, proton and anti-proton yields constitute a significant fraction of the charged hadron production and show a scaling behavior different from that of pions.

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