Suppressed π0 Production at Large Transverse Momentum in Central Au + Au Collisions at √sNN = 200 GeV
Physical Review Letters 91 巻 7 号
072301-1-072301-6 頁
2003-08-13 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Suppressed π0 Production at Large Transverse Momentum in Central Au + Au Collisions at √sNN = 200 GeV
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| 作成者 |
PHENIX Collaboration
Enokizono Akitomo
Hachiya Takashi
Kohama Takeshi
Nakamura Tomoaki
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| 収録物名 |
Physical Review Letters
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| 巻 | 91 |
| 号 | 7 |
| 開始ページ | 072301-1 |
| 終了ページ | 072301-6 |
| 抄録 |
Transverse momentum spectra of neutral pions in the range 1 < pT < 10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in Au + Au collisions at √sNN = 200 GeV. The π0 multiplicity in central reactions is significantly below the yields measured at the same √sNN in peripheral Au + Au and p + p reactions scaled by the number of nucleon-nucleon collisions. For the most central bin, the suppression factor is ∼2.5 at pT = 2 GeV/c and increases to ∼4–5 at pT ≈ 4 GeV/c. At larger pT, the suppression remains constant within errors. The deficit is already apparent in semiperipheral reactions and increases smoothly with centrality.
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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 | 2003-08-13 |
| 権利情報 |
Copyright (c) 2003 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] 0031-9007
[DOI] 10.1103/PhysRevLett.91.072301
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.91.072301
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