Deviation from quark number scaling of the anisotropy parameter v(2) of pions, kaons, and protons in Au+Au collisions at root s(NN)=200 GeV

  • Adare, A.
  • Afanasiev, S.
  • Aidala, C.
  • Ajitanand, N. N.
  • Akiba, Y.
  • ... Hong, B.
  • 외 378명
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초록

Measurements of the anisotropy parameter v(2) of identified hadrons (pions, kaons, and protons) as a function of centrality, transverse momentum p(T), and transverse kinetic energy KET at midrapidity (vertical bar eta vertical bar < 0.35) in Au + Au collisions at root s(N N) = 200 GeV are presented. Pions and protons are identified up to p(T) = 6 GeV/c, and kaons up to p(T) = 4 GeV/c, by combining information from time-of-flight and aerogel Cerenkov detectors in the PHENIX Experiment. The scaling of v(2) with the number of valence quarks (n(q)) has been studied in different centrality bins as a function of transverse momentum and transverse kinetic energy. A deviation from previously observed quark-number scaling is observed at large values of KET/n(q) in noncentral Au + Au collisions (20-60%), but this scaling remains valid in central collisions (0-10%).

키워드

GLUON PLASMAPERSPECTIVESPECTRAMATTERFLOW
제목
Deviation from quark number scaling of the anisotropy parameter v(2) of pions, kaons, and protons in Au+Au collisions at root s(NN)=200 GeV
저자
Adare, A.Afanasiev, S.Aidala, C.Ajitanand, N. N.Akiba, Y.Al-Bataineh, H.Alexander, J.Aoki, K.Aramaki, Y.Atomssa, E. T.Averbeck, R.Awes, T. C.Azmoun, B.Babintsev, V.Bai, M.Baksay, G.Baksay, L.Barish, K. N.Bassalleck, B.Basye, A. T.Bathe, S.Baublis, V.Baumann, C.Bazilevsky, A.Belikov, S.Belmont, R.Bennett, R.Berdnikov, A.Berdnikov, Y.Bickley, A. A.Bok, J. S.Boyle, K.Brooks, M. L.Buesching, H.Bumazhnov, V.Bunce, G.Butsyk, S.Camacho, C. M.Campbell, S.Chen, C. -H.Chi, C. Y.Chiu, M.Choi, I. J.Choudhury, R. K.Christiansen, P.Chujo, T.Chung, P.Chvala, O.Cianciolo, V.Citron, Z.Cole, B. A.Connors, M.Constantin, P.Csanad, M.Csoergo, T.Dahms, T.Dairaku, S.Danchev, I.Das, K.Datta, A.David, G.Denisov, A.Deshpande, A.Desmond, E. J.Dietzsch, O.Dion, A.Donadelli, M.Drapier, O.Drees, A.Drees, K. A.Durham, J. M.Durum, A.Dutta, D.Edwards, S.Efremenko, Y. V.Ellinghaus, F.Engelmore, T.Enokizono, A.En'yo, H.Esumi, S.Fadem, B.Fields, D. E.Finger, M.Finger, M., Jr.Fleuret, F.Fokin, S. L.Fraenkel, Z.Frantz, J. E.Franz, A.Frawley, A. D.Fujiwara, K.Fukao, Y.Fusayasu, T.Garishvili, I.Glenn, A.Gong, H.Gonin, M.Goto, Y.de Cassagnac, R. GranierGrau, N.Greene, S. V.Perdekamp, M. GrosseGunji, T.Gustafsson, H. -A.Haggerty, J. S.Hahn, K. I.Hamagaki, H.Hamblen, J.Han, R.Hanks, J.Hartouni, E. P.Haslum, E.Hayano, R.He, X.Heffner, M.Hemmick, T. K.Hester, T.Hill, J. C.Hohlmann, M.Holzmann, W.Homma, K.Hong, B.Horaguchi, T.Hornback, D.Huang, S.Ichihara, T.Ichimiya, R.Ide, J.Ikeda, Y.Imai, K.Inaba, M.Isenhower, D.Ishihara, M.Isobe, T.Issah, M.Isupov, A.Ivanischev, D.Jacak, B. V.Jia, J.Jin, J.Johnson, B. M.Joo, K. S.Jouan, D.Jumper, D. S.Kajihara, F.Kametani, S.Kamihara, N.Kamin, J.Kang, J. H.Kapustinsky, J.Karatsu, K.Kawall, D.Kawashima, M.Kazantsev, A. V.Kempel, T.Khanzadeev, A.Kijima, K. M.Kim, B. I.Kim, D. H.Kim, D. J.Kim, E.Kim, E. J.Kim, S. H.Kim, Y. J.Kinney, E.Kiriluk, K.Kiss, A.Kistenev, E.Kochenda, L.Komkov, B.Konno, M.Koster, J.Kotchetkov, D.Kozlov, A.Kral, A.Kravitz, A.Kunde, G. J.Kurita, K.Kurosawa, M.Kwon, Y.Kyle, G. S.Lacey, R.Lai, Y. S.Lajoie, J. G.Lebedev, A.Lee, D. M.Lee, J.Lee, K.Lee, K. B.Lee, K. S.Leitch, M. J.Leite, M. A. L.Leitner, E.Lenzi, B.Li, X.Liebing, P.Levy, L. A. LindenLiska, T.Litvinenko, A.Liu, H.Liu, M. X.Love, B.Luechtenborg, R.Lynch, D.Maguire, C. F.Makdisi, Y. I.Malakhov, A.Malik, M. D.Manko, V. I.Mannel, E.Mao, Y.Masui, H.Matathias, F.McCumber, M.McGaughey, P. L.Means, N.Meredith, B.Miake, Y.Mignerey, A. C.Mikes, P.Miki, K.Milov, A.Mishra, M.Mitchell, J. T.Mohanty, A. K.Morino, Y.Morreale, A.Morrison, D. P.Moukhanova, T. V.Murata, J.Nagamiya, S.Nagle, J. L.Naglis, M.Nagy, M. I.Nakagawa, I.Nakamiya, Y.Nakamura, T.Nakano, K.Newby, J.Nguyen, M.Nouicer, R.Nyanin, A. S.O'Brien, E.Oda, S. X.Ogilvie, C. A.Oka, M.Okada, K.Onuki, Y.Oskarsson, A.Ouchida, M.Ozawa, K.Pak, R.Pantuev, V.Papavassiliou, V.Park, I. H.Park, J.Park, S. K.Park, W. J.Pate, S. F.Pei, H.Peng, J. -C.Pereira, H.Peresedov, V.Peressounko, D. YuPinkenburg, C.Pisani, R. P.Proissl, M.Purschke, M. L.Purwar, A. K.Qu, H.Rak, J.Rakotozafindrabe, A.Ravinovich, I.Read, K. F.Reygers, K.Riabov, V.Riabov, Y.Richardson, E.Roach, D.Roche, G.Rolnick, S. D.Rosati, M.Rosen, C. A.Rosendahl, S. S. E.Rosnet, P.Rukoyatkin, P.Ruzicka, P.Sahlmueller, B.Saito, N.Sakaguchi, T.Sakashita, K.Samsonov, V.Sano, S.Sato, T.Sawada, S.Sedgwick, K.Seele, J.Seidl, R.Semenov, A. YuSeto, R.Sharma, D.Shein, I.Shibata, T. -A.Shigaki, K.Shimomura, M.Shoji, K.Shukla, P.Sickles, A.Silva, C. L.Silvermyr, D.Silvestre, C.Sim, K. S.Singh, B. K.Singh, C. P.Singh, V.Slunecka, M.Soltz, R. A.Sondheim, W. E.Sorensen, S. P.Sourikova, I. V.Sparks, N. A.Stankus, P. W.Stenlund, E.Stoll, S. P.Sugitate, T.Sukhanov, A.Sziklai, J.Takagui, E. M.Taketani, A.Tanabe, R.Tanaka, Y.Tanida, K.Tannenbaum, M. J.Tarafdar, S.Taranenko, A.Tarjan, P.Themann, H.Thomas, T. L.Togawa, M.Toia, A.Tomasek, L.Torii, H.Towell, R. S.Tserruya, I.Tsuchimoto, Y.Vale, C.Valle, H.van Hecke, H. W.Vazquez-Zambrano, E.Veicht, A.Velkovska, J.Vertesi, R.Vinogradov, A. A.Virius, M.Vrba, V.Vznuzdaev, E.Wang, X. R.Watanabe, D.Watanabe, K.Watanabe, Y.Wei, F.Wei, R.Wessels, J.White, S. N.Winter, D.Wood, J. P.Woody, C. L.Wright, R. M.Wysocki, M.Xie, W.Yamaguchi, Y. L.Yamaura, K.Yang, R.Yanovich, A.Ying, J.Yokkaichi, S.You, Z.Young, G. R.Younus, I.Yushmanov, I. E.Zajc, W. A.Zhang, C.Zhou, S.Zolin, L.
DOI
10.1103/PhysRevC.85.064914
발행일
2012-06-25
유형
Article
저널명
Physical Review C - Nuclear Physics
85
6