Measurement of Nonrandom Event-by-Event Fluctuations of Average Transverse Momentum in √sNN = 200 GeV Au + Au and p + p Collisions

Physical Review Letters 93 巻 9 号 092301-1-092301-6 頁 2004-08-24 発行
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タイトル ( eng )
Measurement of Nonrandom Event-by-Event Fluctuations of Average Transverse Momentum in √sNN = 200 GeV Au + Au and p + p Collisions
作成者
PHENIX Collaboration
Enokizono Akitomo
Hachiya Takashi
Kohama Takeshi
Nakamura Tomoaki
収録物名
Physical Review Letters
93
9
開始ページ 092301-1
終了ページ 092301-6
抄録
Event-by-event fluctuations of the average transverse momentum of produced particles near midrapidity have been measured by the PHENIX Collaboration in √sNN = 200 GeV Au + Au, and p + p collisions at the Relativistic Heavy Ion Collider. The fluctuations are observed to be in excess of the expectation for statistically independent particle emission for all centralities. The excess fluctuations exhibit a dependence on both the centrality of the collision and on the pT range over which the average is calculated. Both the centrality and pT dependence can be well reproduced by a simulation of random particle production with the addition of contributions from hard-scattering processes.
著者キーワード
proton-proton inclusive interactions
hard collision models
statistical models (elementary particles)
statistical models (nuclear)
heavy ion-nucleus reactions
nuclei with mass number 190 to 219
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2004-08-24
権利情報
Copyright (c) 2004 The 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] 0031-9007
[DOI] 10.1103/PhysRevLett.93.092301
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.93.092301