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| 題名: | Systematic study of azimuthal anisotropy in Cu + Cu and Au + Au collisions at s NN =62.4 and 200 GeV SYSTEMATIC STUDY of AZIMUTHAL ANISOTROPY in ⋯ A. ADARE et al. |
| 作者: | 彭仁傑;Adare, A;Afanasiev, S;Aidala, C;Ajitanand, N. N;Akiba, Y;Al-Bataineh, H;Al-Jamel, A;Alexander, J;Aoki, K;Aphecetche, L;Armendariz, R;Aronson, S. H;Asai, J;Atomssa, E. T;Averbeck, R;Awes, T. C;Azmoun, B;Babintsev, V;Baksay, G;Baksay, L;Baldisseri, A;Barish, K. N;Barnes, P. D;Bassalleck, B;Bathe, S;Batsouli, S;Baublis, V;Bauer, F;Bazilevsky, A;Belikov, S;Bennett, R;Berdnikov, Y;Bickley, A. A;Bjorndal, M. T;Boissevain, J. G;Borel, H;Boyle, K;Brooks, M. L;Brown, D. S;Buche |
| 貢獻者: | 高能與強場物理研究中心 |
| 關鍵詞: | COLLABORATION;COLLECTIVE FLOW;HEAVY-ION COLLISIONS;NUCLEAR COLLISIONS;PERSPECTIVE;PHENIX;QUARK-GLUON PLASMA |
| 日期: | 2015-09-23 |
| 上傳時間: | 2026-04-23 12:07:45 (UTC+8) |
| 出版者: | American Physical Society;PHYSICAL REVIEW C |
| 摘要: | 摘要： We have studied the dependence of azimuthal anisotropy nu(2) for inclusive and identified charged hadrons in Au + Au and Cu + Cu collisions on collision energy, species, and centrality. The values of nu(2) as a function of transverse momentum pT and centrality in Au + Au collisions at root s(NN) = 200 and 62.4 GeV are the same within uncertainties. However, in Cu + Cu collisions we observe a decrease in nu(2) values as the collision energy is reduced from 200 to 62.4 GeV. The decrease is larger in the more peripheral collisions. By examining both Au + Au and Cu + Cu collisions we find that nu(2) depends both on eccentricity and the number of participants, N-part. We observe that nu(2) divided by eccentricity (epsilon) monotonically increases with N-part and scales as N-part(1/3). The Cu + Cu data at 62.4 GeV falls below the other scaled nu(2) data. For identified hadrons, nu(2) divided by the number of constituent quarks n(q) is independent of hadron species as a function of transverse kinetic energy K E-T =
出版者： PHYSICAL REVIEW C
出版日期： 2015
識別號： ISSN: 0556-2813
識別號： ISSN: 1089-490X
識別號： EISSN: 1089-490X
識別號： DOI: 10.1103/PhysRevC.92.034913 |
| 顯示於類別: | [高能與強場物理研究中心] 期刊論文
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