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Azimuthal anisotropy of π 0 and η mesons in Au + Au collisions at s NN = 200 GeV

  • A. Adare
  • , S. Afanasiev
  • , C. Aidala
  • , N. N. Ajitanand
  • , Y. Akiba
  • , H. Al-Bataineh
  • , J. Alexander
  • , K. Aoki
  • , Y. Aramaki
  • , E. T. Atomssa
  • , R. Averbeck
  • , T. C. Awes
  • , B. Azmoun
  • , V. Babintsev
  • , M. Bai
  • , G. Baksay
  • , L. Baksay
  • , K. N. Barish
  • , B. Bassalleck
  • , A. T. Basye
  • S. Bathe, V. Baublis, C. Baumann, A. Bazilevsky, S. Belikov, R. Belmont, R. Bennett, A. Berdnikov, Y. Berdnikov, A. A. Bickley, J. S. Bok, K. Boyle, M. L. Brooks, H. Buesching, V. Bumazhnov, G. Bunce, S. Butsyk, C. M. Camacho, S. Campbell, C. H. Chen, C. Y. Chi, M. Chiu, I. J. Choi, R. K. Choudhury, P. Christiansen, T. Chujo, P. Chung, O. Chvala, V. Cianciolo, Z. Citron, B. A. Cole, M. Connors, P. Constantin, M. Csanád, T. Csörgo, T. Dahms, S. Dairaku, I. Danchev, K. Das, A. Datta, G. David, A. Denisov, A. Deshpande, E. J. Desmond, O. Dietzsch, A. Dion, M. Donadelli, O. Drapier, A. Drees, K. A. Drees, J. M. Durham, A. Durum, D. Dutta, S. Edwards, Y. V. Efremenko, F. Ellinghaus, T. Engelmore, A. Enokizono, H. En'Yo, S. Esumi, B. Fadem, D. E. Fields, M. Finger, M. Finger, F. Fleuret, S. L. Fokin, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, K. Fujiwara, Y. Fukao, T. Fusayasu, I. Garishvili, A. Glenn, H. Gong, M. Gonin, Y. Goto, R. Granier De Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, T. Gunji, H. A. Gustafsson, J. S. Haggerty, K. I. Hahn, H. Hamagaki, J. Hamblen, R. Han, J. Hanks, E. P. Hartouni, E. Haslum, R. Hayano, X. He, M. Heffner, T. K. Hemmick, T. Hester, J. C. Hill, M. Hohlmann, W. Holzmann, K. Homma, B. Hong, T. Horaguchi, D. Hornback, S. Huang, T. Ichihara, R. Ichimiya, J. Ide, Y. Ikeda, K. Imai, M. Inaba, D. Isenhower, M. Ishihara, T. Isobe, M. Issah, A. Isupov, D. Ivanischev, B. V. Jacak, J. Jia, J. Jin, B. M. Johnson, K. S. Joo, D. Jouan, D. S. Jumper, F. Kajihara, S. Kametani, N. Kamihara, J. Kamin, J. H. Kang, J. Kapustinsky, K. Karatsu, D. Kawall, M. Kawashima, A. V. Kazantsev, T. Kempel, A. Khanzadeev, K. M. Kijima, B. I. Kim, D. H. Kim, D. J. Kim, E. Kim, E. J. Kim, S. H. Kim, Y. J. Kim, E. Kinney, K. Kiriluk, A. Kiss, E. Kistenev, L. Kochenda, B. Komkov, M. Konno, J. Koster, D. Kotchetkov, A. Kozlov, A. Král, A. Kravitz, G. J. Kunde, K. Kurita, M. Kurosawa, Y. Kwon, G. S. Kyle, R. Lacey, Y. S. Lai, J. G. Lajoie, A. Lebedev, D. M. Lee, J. Lee, K. Lee, K. B. Lee, K. S. Lee, M. J. Leitch, M. A.L. Leite, E. Leitner, B. Lenzi, X. Li, P. Liebing, L. A.Linden Levy, T. Liška, A. Litvinenko, H. Liu, M. X. Liu, B. Love, R. Luechtenborg, D. Lynch, C. F. Maguire, Y. I. Makdisi, A. Malakhov, M. D. Malik, V. I. Manko, E. Mannel, Y. Mao, H. Masui, F. Matathias, M. McCumber, P. L. McGaughey, N. Means, B. Meredith, Y. Miake, A. C. Mignerey, P. Mikeš, K. Miki, A. Milov, M. Mishra, J. T. Mitchell, A. K. Mohanty, Y. Morino, A. Morreale, D. P. Morrison, T. V. Moukhanova, J. Murata, S. Nagamiya, J. L. Nagle, M. Naglis, M. I. Nagy, I. Nakagawa, Y. Nakamiya, T. Nakamura, K. Nakano, J. Newby, M. Nguyen, R. Nouicer, A. S. Nyanin, E. O'Brien, S. X. Oda, C. A. Ogilvie, M. Oka, K. Okada, Y. Onuki, A. Oskarsson, M. Ouchida, K. Ozawa, R. Pak, V. Pantuev, V. Papavassiliou, I. H. Park, J. Park, S. K. Park, W. J. Park, S. F. Pate, H. Pei, J. C. Peng, H. Pereira, V. Peresedov, D. Yu Peressounko, C. Pinkenburg, R. P. Pisani, M. Proissl, M. L. Purschke, A. K. Purwar, H. Qu, J. Rak, A. Rakotozafindrabe, I. Ravinovich, K. F. Read, K. Reygers, V. Riabov, Y. Riabov, E. Richardson, D. Roach, G. Roche, S. D. Rolnick, M. Rosati, C. A. Rosen, S. S.E. Rosendahl, P. Rosnet, P. Rukoyatkin, P. Ružička, B. Sahlmueller, N. Saito, T. Sakaguchi, K. Sakashita, V. Samsonov, S. Sano, T. Sato, S. Sawada, K. Sedgwick, J. Seele, R. Seidl, A. Yu Semenov, R. Seto, D. Sharma, I. Shein, T. A. Shibata, K. Shigaki, M. Shimomura, K. Shoji, P. Shukla, A. Sickles, C. L. Silva, D. Silvermyr, C. Silvestre, K. S. Sim, B. K. Singh, C. P. Singh, V. Singh, M. Slunečka, R. A. Soltz, W. E. Sondheim, S. P. Sorensen, I. V. Sourikova, N. A. Sparks, P. W. Stankus, E. Stenlund, S. P. Stoll, T. Sugitate, A. Sukhanov, J. Sziklai, E. M. Takagui, A. Taketani, R. Tanabe, Y. Tanaka, K. Tanida, M. J. Tannenbaum, S. Tarafdar, A. Taranenko, P. Tarján, H. Themann, T. L. Thomas, M. Togawa, A. Toia, L. Tomášek, H. Torii, R. S. Towell, I. Tserruya, Y. Tsuchimoto, C. Vale, H. Valle, H. W. Van Hecke, E. Vazquez-Zambrano, A. Veicht, J. Velkovska, R. Vértesi, A. A. Vinogradov, M. Virius, V. Vrba, E. Vznuzdaev, X. R. Wang, D. Watanabe, K. Watanabe, Y. Watanabe, F. Wei, R. Wei, J. Wessels, S. N. White, D. Winter, J. P. Wood, C. L. Woody, R. M. Wright, M. Wysocki, W. Xie, Y. L. Yamaguchi, K. Yamaura, R. Yang, A. Yanovich, J. Ying, S. Yokkaichi, Z. You, G. R. Young, I. Younus, I. E. Yushmanov, W. A. Zajc, C. Zhang, S. Zhou, L. Zolin
  • University of Colorado Boulder
  • Joint Institute for Nuclear Research
  • University of Massachusetts
  • University of Michigan, Ann Arbor
  • Stony Brook University
  • RIKEN
  • Brookhaven National Lab
  • New Mexico State University
  • Kyoto University
  • The University of Tokyo
  • CNRS-IN2P3
  • Oak Ridge National Laboratory
  • Brookhaven National Laboratory
  • Institute for High Energy Physics
  • Florida Institute of Technology
  • University of California at Riverside
  • University of New Mexico
  • Abilene Christian University
  • City University of New York
  • Petersburg Nuclear Physics InstituteGatchina
  • University of Münster
  • Vanderbilt University
  • Peter the Great St. Petersburg Polytechnic University
  • Yonsei University
  • Los Alamos National Laboratory
  • Columbia University
  • Homi Bhabha National Institute
  • Lund University
  • University of Tsukuba
  • Eötvös Loránd University
  • Hungarian Academy of Sciences
  • Florida State University
  • Universidade de São Paulo
  • Lawrence Livermore National Laboratory
  • Muhlenberg College
  • Charles University
  • Russian Research Centre Kurchatov Institute
  • Weizmann Institute of Science
  • Ohio University
  • Nagasaki Institute of Applied Science
  • University of Tennessee
  • Augustana College, Sioux Falls
  • University of Illinois at Urbana-Champaign
  • Ewha Womans University
  • Peking University
  • Georgia State University
  • Iowa State University
  • Hiroshima University
  • Korea University
  • Japan Atomic Energy Agency
  • Myongji University
  • Université Paris-Saclay
  • Rikkyo University
  • University of Jyväskylä
  • Seoul National University
  • Jeonbuk National University
  • Czech Technical University in Prague
  • China National Nuclear Corporation
  • University of Maryland, College Park
  • Czech Academy of Sciences
  • Banaras Hindu University
  • High Energy Accelerator Research Organization, Tsukuba
  • Institute of Science Tokyo
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • CEA Saclay
  • Université Blaise Pascal
  • Waseda University
  • University of Debrecen
  • Lahore University of Management Sciences

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

The azimuthal anisotropy coefficients v2 and v4 of π0 and η mesons are measured in Au + Au collisions at sNN=200 GeV as a function of transverse momentum pT (1-14 GeV/c) and centrality. The extracted v2 coefficients are found to be consistent between the two meson species over the measured pT range. The ratio of v4/v22 for π0 mesons is found to be independent of pT for 1-9 GeV/c, implying a lack of sensitivity of the ratio to the change of underlying physics with pT. Furthermore, the ratio of v4/v22 is systematically larger in central collisions, which may reflect the combined effects of fluctuations in the initial collision geometry and finite viscosity in the evolving medium.

Original languageEnglish
Article number064910
JournalPhysical Review C - Nuclear Physics
Volume88
Issue number6
DOIs
StatePublished - Dec 20 2013

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