Common Suppression Pattern of η and π0 Mesons at High Transverse Momentum in Au + Au Collisions at √sNN = 200GeV
Physical Review Letters 96 巻 20 号
202301-1-202301-6 頁
2006-05-22 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Common Suppression Pattern of η and π0 Mesons at High Transverse Momentum in Au + Au Collisions at √sNN = 200GeV
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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 | 96 |
| 号 | 20 |
| 開始ページ | 202301-1 |
| 終了ページ | 202301-6 |
| 抄録 |
Inclusive transverse momentum spectra of η mesons have been measured within pT=2-10 GeV/c at midrapidity by the PHENIX experiment in Au + Au collisions at √sNN = 200GeV. In central Au + Au the η yields are significantly suppressed compared to peripheral Au + Au, d + Au, and p + p yields scaled by the corresponding number of nucleon-nucleon collisions. The magnitude, centrality, and pT dependence of the suppression is common, within errors, for η and π0. The ratio of η to π0 spectra at high pT amounts to 0.40 < Rη/ π0 < 0.48 for the three systems, in agreement with the world average measured in hadronic and nuclear reactions and, at large scaled momentum, in e+e- collisions.
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| 著者キーワード |
heavy ion-nucleus reactions
deuteron-nucleus reactions
proton-proton inclusive interactions
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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 | 2006-05-22 |
| 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] 0031-9007
[DOI] 10.1103/PhysRevLett.96.202301
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.96.202301
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