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| phi meson production in Au + Au and p + p collisions at root S-NN=200 GeV | |
| Adams, J; Adler, C; Aggarwal, MM; Cai, XZ（蔡翔舟）; Ma, YG（马余刚）; Wang, XL; Wang, ZM; Zoulkarneev, R; Zoulkarneeva, J; Zubarev, AN | |
| 2005 | |
| Source Publication | PHYSICS LETTERS B
 |
| ISSN | 0370-2693 |
| Volume | 612Issue:40972Pages:181 |
| Abstract | We report the STAR measurement of phi meson production in Au + Au and p + p collisions at root s(NN) = 200 GeV. Using the event mixing technique, the phi spectra and yields are obtained at mid-rapidity for five centrality bins in Au + Au collisions and for non-singly-diffractive p + p collisions. It is found that the phi transverse momentum distributions from Au + An collisions are better fitted with a single-exponential while the p + p spectrum is better described by a double-exponential distribution. The measured nuclear modification factors indicate that phi production in central An + An collisions is suppressed relative to peripheral collisions when scaled by the number of binary collisions (< N-bin>). The systematics of < p(t)> versus centrality and the constant phi/K- ratio versus beam species, centrality, and collision energy rule out kaon coalescence as the dominant mechanism for phi production. (c) 2005 Elsevier B.V. All rights reserved. |
| Indexed By | SCI |
| Language | 中文 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000228596100012 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/9426 |
| Collection | 中科院上海应用物理研究所2004-2010年 |
| Recommended Citation GB/T 7714 | Adams, J,Adler, C,Aggarwal, MM,et al. phi meson production in Au + Au and p + p collisions at root S-NN=200 GeV[J]. PHYSICS LETTERS B,2005,612(40972):181. |
| APA | Adams, J.,Adler, C.,Aggarwal, MM.,Cai, XZ.,Ma, YG.,...&Zubarev, AN.(2005).phi meson production in Au + Au and p + p collisions at root S-NN=200 GeV.PHYSICS LETTERS B,612(40972),181. |
| MLA | Adams, J,et al."phi meson production in Au + Au and p + p collisions at root S-NN=200 GeV".PHYSICS LETTERS B 612.40972(2005):181. |
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