Identified charged hadron production in p + p collisions at √ s = 200 and 62.4 GeV

Physical Review C 83 巻 6 号 064903-1-064903-29 頁 2011-06-23 発行
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タイトル ( eng )
Identified charged hadron production in p + p collisions at √ s = 200 and 62.4 GeV
作成者
PHENIX Collaboration
Hachiya T.
Harada H.
Haruna K.
Kijima K. M.
Nakamiya Y.
Nakamura T.
Ouchida M.
Sakata H.
Torii H.
Tsuchimoto Y.
Yamaura K.
収録物名
Physical Review C
83
6
開始ページ 064903-1
終了ページ 064903-29
抄録
Transverse momentum distributions and yields for π±, K±, p, and p^<-> in p + p collisions at √s = 200 and 62.4 GeV at midrapidity are measured by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC). These data provide important baseline spectra for comparisons with identified particle spectra in heavy ion collisions at RHIC. We present the inverse slope parameter Tinv, mean transverse momentum <pT>, and yield per unit rapidity dN/dy at each energy, and compare them to othermeasurements at different √s in p + p and p + p collisions. We also present the scaling properties such as mT scaling and xT scaling on the pT spectra between different energies. To discuss the mechanism of the particle production in p + p collisions, the measured spectra are compared to next-to-leading-order or next-to-leading-logarithmic perturbative quantum chromodynamics calculations.
NDC分類
物理学 [ 420 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2011-06-23
権利情報
Copyright (c) 2011 American Physical Society
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
[ISSN] 2469-9985
[NCID] AA00773613
[DOI] 10.1103/PhysRevC.83.064903