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High transverse momentum η meson production in p+p, d+Au, and Au+Au collisions at √sNN = 200 GeV
https://hiroshima.repo.nii.ac.jp/records/2008319
https://hiroshima.repo.nii.ac.jp/records/200831976490959-65b5-4916-940c-21e8559f6537
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
PhysRevC_75_024909.pdf (1.2 MB)
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| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||||||||||||||||||
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| 公開日 | 2023-03-18 | |||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||
| タイトル | High transverse momentum η meson production in p+p, d+Au, and Au+Au collisions at √sNN = 200 GeV | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 作成者 |
PHENIX Collaboration
× PHENIX Collaboration
× Enokizono, Akitomo
× Hachiya, Takashi
× Homma, Kensuke
× Kohama, Takeshi
× Kohara, Ryota
× Nakamura, Tomoaki
× Shigaki, Kenta
× Sugitate, Toru
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| アクセス権 | ||||||||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||||||||||
| 権利情報 | ||||||||||||||||||||||||
| 権利情報 | Copyright (c) 2007 The American Physical Society. | |||||||||||||||||||||||
| 内容記述 | ||||||||||||||||||||||||
| 内容記述 | Inclusive transverse momentum spectra of η mesons in the range pT≈2-12 GeV/c have been measured at midrapidity (|η|<0.35) by the PHENIX experiment at RHIC in p+p,d+Au, and Au+Au collisions at √sNN=200 GeV. The η mesons are reconstructed through their η→γγ channel for the three colliding systems as well as through the η→π0π+π- decay mode in p+p and d+Au collisions. The nuclear modification factor in d+Au collisions, RdAu(pT)≈1.0-1.1, suggests at most only modest pT broadening ("Cronin enhancement"). In central Au+Au reactions, the η yields are significantly suppressed, with RAuAu(pT)≈0.2. The ratio of η to π0 yields is approximately constant as a function of pT for the three colliding systems in agreement with the high-pT world average of Rη/π0≈0.5 in hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions for a wide range of center-of-mass energies (√sNN≈3-1800 GeV) as well as, for high scaled momentum xp, in e+e- annihilations at √s=91.2 GeV. These results are consistent with a scenario where high-pT η production in nuclear collisions at the Relativistic Heavy Ion Collider is largely unaffected by initial-state effects but where light-quark mesons (π0,η) are equally suppressed due to final-state interactions of the parent partons in the dense medium produced in Au+Au reactions. | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||
| 出版者 | American Physical Society | |||||||||||||||||||||||
| 言語 | ||||||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||||||||
| 関連情報 | ||||||||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||||||
| 関連識別子 | 10.1103/PhysRevC.75.024909 | |||||||||||||||||||||||
| 関連情報 | ||||||||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||||||
| 関連識別子 | http://dx.doi.org/10.1103/PhysRevC.75.024909 | |||||||||||||||||||||||
| 収録物識別子 | ||||||||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||||||||
| 収録物識別子 | 0556-2813 | |||||||||||||||||||||||
| 収録物識別子 | ||||||||||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||||||||||
| 収録物識別子 | AA00773613 | |||||||||||||||||||||||
| 開始ページ | ||||||||||||||||||||||||
| 開始ページ | 024909-1 | |||||||||||||||||||||||
| 書誌情報 |
Physical Review C - Nuclear Physics Physical Review C - Nuclear Physics 巻 75, 号 2, p. 024909-1-024909-36, 発行日 2007-02-27 |
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| 旧ID | 19500 | |||||||||||||||||||||||
