1. Scaling properties of proton and antiproton production in $\sqrt{S_{NN}}$=200 GeV Au+Au collisions
- Author
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Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Alexander, J., Amirikas, R., Aphecetche, Laurent, Aronson, S.H., Averbeck, R., Awes, T.C., Azmoun, R., Babintsev, V., Baldisseri, A., Barish, K.N., Barnes, P.D., Bassalleck, B., Bathe, S., Batsouli, S., Baublis, V., Bazilevsky, A., Belikov, S., Berdnikov, Y., Bhagavatula, S., Boissevain, J.G., Borel, H., Borenstein, S., Brooks, M.L., Brown, D.S., Bruner, N., Bucher, D., Buesching, H., Bumazhnov, V., Bunce, G., Burward-Hoy, J.M., Butsyk, S., Camard, X., Chai, J.S., Chand, P., Chang, W.C., Chernichenko, S., Chi, C.Y., Chiba, J., Chiu, M., Choi, I.J., Choi, J., Choudhury, R.K., Chujo, T., Cianciolo, V., Cobigo, Y., Cole, B.A., Constantin, P., d'Enterria, D.G., David, G., Delagrange, H., Denisov, A., Deshpande, A., Desmond, E.J., Dietzsch, O., Drapier, O., Drees, A., Du Rietz, R., Durum, A., Dutta, D., Efremenko, Y.V., Chenawi, K.E., Enokizono, A., En'Yo, H., Esumi, S., Ewell, L., Fields, D.E., Fleuret, F., Fokin, S.L., Fox, B.D., Fraenkel, Z., Frantz, J.E., Franz, A., Frawley, A.D., Fung, S.Y., Garpman, S., Ghosh, T.K., Glenn, A., Gogiberidze, G., Gonin, M., Gosset, J., Goto, Y., de Cassagnac, R.G., Grau, N., Greene, S.V., Perdekamp, G.G., Guryn, W., Gustafsson, H.A., Hachiya, T., Haggerty, J.S., Hamagaki, H., Hansen, A.G., Hartouni, E.P., Harvey, M., Hayano, R., He, X., Heffner, M., Hemmick, T.K., Heuser, J.M., Hibino, M., Hill, J.C., Holzmann, W., Homma, K., Hong, B., Hoover, A., Ichihara, T., Ikonnikov, V.V., Imai, K., Isenhower, L.D., Ishihara, M., Issah, M., Isupov, A., Jacak, B.V., Jang, W.Y., Jeong, Y., Jia, J., Jinnouchi, O., Johnson, B.M., Johnson, S.C., Joo, K.S., Jouan, D., Kametani, S., Kamihara, N., Kang, J.H., Kapoor, S.S., Katou, K., Kelly, Steven, Khachaturov, B., Khanzadeev, A., Kikuchi, J., Kim, D.H., Kim, D.J., Kim, D.W., Kim, E., Kim, G.B., Kim, H.J., Kistenev, E., Kiyomichi, A., Kiyoyama, K., Klein-Boesing, C., Kobayashi, H., Kochenda, L., Kochetkov, V., Koehler, D., Kohama, T., Kopytine, M., Kotchetkov, D., Kozlov, A., Kroon, P.J., Kuberg, C.H., Kurita, K., Kuroki, Y., Kweon, M.J., Kwon, Y., Kyle, G.S., Lacey, R., Ladygin, V., Lajoie, J.G., Lebedev, A., Leckey, S., Lee, D.M., Lee, S., Leitch, M.J., Li, X.H., Lim, H., Litvinenko, A., Liu, M.X., Liu, Yehan, Maguire, C.F., Makdisi, Y.I., Malakhov, A., Manko, V.I., Mao, Y., Martinez Garcia, Gines, Marx, M.D., Masui, H., Matathias, F., Matsumoto, T., Mcgaughey, P.L., Melnikov, E., Messer, F., Miake, Y., Milan, J., Miller, T.E., Milov, A., Mioduszewski, S., Mischke, R.E., Mishra, G.C., Mitchell, J.T., Mohanty, A.K., Morrison, D.P., Moss, J.M., Muhlbacher, F., Mukhopadhyay, D., Muniruzzaman, M., Murata, J., Nagamiya, S., Nagle, J.L., Nakamura, T., Nandi, B.K., Nara, M., Newby, J., Nilsson, P., Nyanin, A.S., Nystrand, J., O'Brien, E., Ogilvie, C.A., Ohnishi, H., Ojha, I.D., Okada, K., Ono, M., Onuchin, V., Oskarsson, A., Otterlund, I., Oyama, K., Ozawa, K., Pal, D., Palounek, A.P.T., Pantuev, V.S., Papavassiliou, V., Park, J., Parmar, A., Pate, S.F., Peitzmann, T., Peng, J.C., Peresedov, V., Pinkenburg, C., Pisani, R.P., Plasil, F., Purschke, M.L., Purwar, A., Rak, J., Ravinovich, I., Read, K.F., Reuter, M., Reygers, K., Riabov, V., Riabov, Y., Roche, G., Romana, A., Rosati, M., Rosnet, P., Ryu, S.S., Sadler, M.E., Saito, N., Sakaguchi, T., Sakai, M., Sakai, S., Samsonov, V., Sanfratello, L., Santo, R., Sato, H.D., Sato, S., Sawada, S., Schutz, Y., Semenov, V., Seto, R., Shaw, M.R., Shea, T.K., Shibata, T.A., Shigaki, K., Shiina, T., Silva, C.L., Silvermyr, D., Sim, K.S., Singh, C.P., Singh, V., Sivertz, M., Soldatov, A., Soltz, R.A., Sondheim, W.E., Sorensen, S.P., Sourikova, I.V., Staley, F., Stankus, P.W., Stenlund, E., Stepanov, M., Ster, A., Stoll, S.P., Sugitate, T., Sullivan, J.P., Takagui, E.M., Taketani, A., Tamai, M., Tanaka, K.H., Tanaka, Y., Tanida, K., Tannenbaum, M.J., Tarjan, P., Tepe, J.D., Thomas, T.L., Tojo, J., Torii, H., Towell, R.S., Tserruya, I., Tsuruoka, H., Tuli, S.K., Tydesjo, H., Tyurin, N., van Hecke, H.W., Velkovska, J., Velkovsky, M., Villatte, L., Vinogradov, A.A., Volkov, M.A., Vznuzdaev, E., Wang, X.R., Watanabe, Y., White, S.N., Wohn, F.K., Woody, C.L., Xie, W., Yang, Y., Yanovich, A., Yokkaichi, S., Young, G.R., Yushmanov, I.E., Zajc, W.A., Zhang, C., Zhou, S., Zolin, L., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), PHENIX, Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Nuclear Theory ,FOS: Physical sciences ,High Energy Physics::Experiment ,Nuclear Experiment (nucl-ex) ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,Nuclear Experiment - Abstract
We report on the yield of protons and anti-protons, as a function of centrality and transverse momentum, in Au+Au collisions at sqrt(s_NN) = 200 GeV measured at mid-rapidity by the PHENIX experiment at RHIC. In central collisions at intermediate transverse momenta (1.5 < p_T < 4.5 GeV/c) a significant fraction of all produced particles are protons and anti-protons. They show a centrality-scaling behavior different from that of pions. The p-bar/pion and p/pion ratios are enhanced compared to peripheral Au+Au, p+p, and electron+positron collisions. This enhancement is limited to p_T < 5 GeV/c as deduced from the ratio of charged hadrons to pi^0 measured in the range 1.5 < p_T < 9 GeV/c., 325 authors, 6 pages text, 4 figures, RevTeX 4. Minor changes to text and figures to meet PRL length restrictions; no changes to figures; resubmitted to PRL. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
- Published
- 2003