Nuclear effects on hadron production in d + Au collisions at √sNN = 200 GeV revealed by comparison with p + p data
Physical Review C - Nuclear Physics 74 巻 2 号
024904-1-024904-13 頁
2006-08-16 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Nuclear effects on hadron production in d + Au collisions at √sNN = 200 GeV revealed by comparison with p + p data
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| 作成者 |
PHENIX Collaboration
Hachiya Takashi
Kohara Ryota
Nakamura Tomoaki
Tsuchimoto Yuji
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| 収録物名 |
Physical Review C - Nuclear Physics
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| 巻 | 74 |
| 号 | 2 |
| 開始ページ | 024904-1 |
| 終了ページ | 024904-13 |
| 抄録 |
PHENIX has measured the centrality dependence of midrapidity pion, kaon, and proton transverse momentum distributions in d+Au and p+p collisions at √sNN=200 GeV. The p+p data provide a reference for nuclear effects in d+Au and previously measured Au+Au collisions. Hadron production is enhanced in d+Au, relative to independent nucleon-nucleon scattering, as was observed in lower energy collisions. The nuclear modification factor for (anti)protons is larger than that for pions. The difference increases with centrality but is not sufficient to account for the abundance of baryon production observed in central Au+Au collisions at the BNL Relativistic Heavy Ion Collider (RHIC). The centrality dependence in d+Au shows that the nuclear modification factor increases gradually with the number of collisions encountered by each participant nucleon. We also present comparisons with lower energy data as well as with parton recombination and other theoretical models of nuclear effects on particle production.
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 2006-08-16 |
| 権利情報 |
Copyright (c) 2006 The American Physical Society.
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0556-2813
[DOI] 10.1103/PhysRevC.74.024904
[NCID] AA00773613
[DOI] http://dx.doi.org/10.1103/PhysRevC.74.024904
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