Single Electrons from Heavy-Flavor Decays in p + p Collisions at √s = 200 GeV
Physical Review Letters 96 巻 3 号
032001-1-032001-6 頁
2006-01-26 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Single Electrons from Heavy-Flavor Decays in p + p Collisions at √s = 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 | 96 |
| 号 | 3 |
| 開始ページ | 032001-1 |
| 終了ページ | 032001-6 |
| 抄録 |
The invariant differential cross section for inclusive electron production in p+p collisions at s=200GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over the transverse momentum range 0.4≤pT≤5.0GeV/c in the central rapidity region (|η|≤0.35). The contribution to the inclusive electron spectrum from semileptonic decays of hadrons carrying heavy flavor, i.e., charm quarks or, at high pT, bottom quarks, is determined via three independent methods. The resulting electron spectrum from heavy-flavor decays is compared to recent leading and next-to-leading order perturbative QCD calculations. The total cross section of charm quark-antiquark pair production is determined to be σcc̅=0.92±0.15(stat) ±0.54(syst)mb.
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| 著者キーワード |
proton-proton inclusive interactions
electron production
meson leptonic decay
semileptonic decays
meson resonances
charm particles
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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 | 2006-01-26 |
| 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.96.032001
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.96.032001
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