Centrality and pseudorapidity dependence of charged hadron production at intermediate pTin Au+Au collisions at √sNN=130 GeV

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12 Scopus citations

Abstract

We present STAR measurements of charged hadron production as a function of centrality in Au+Au collisions at √sNN=130 GeV. The measurements cover a phase space region of 0.2<pT<6.0 GeV/c in transverse momentum and -1 < η< 1 in pseudorapidity. Inclusive transverse momentum distributions of charged hadrons in the pseudorapidity region 0.5<|η|<1 are reported and compared to our previously published results for |η|<0.5. No significant difference is seen for inclusive pT distributions of charged hadrons in these two pseudorapidity bins. We measured dN/dη distributions and truncated mean pT in a region of pT>pcut, and studied the results in the framework of participant and binary scaling. No clear evidence is observed for participant scaling of charged hadron yield in the measured pT region. The relative importance of hard scattering processes is investigated through binary scaling fraction of particle production.

Original languageEnglish
Article number044901
Pages (from-to)044901-1-044901-11
JournalPhysical Review C - Nuclear Physics
Volume70
Issue number4
DOIs
StatePublished - Oct 1 2004

Bibliographical note

Publisher Copyright:
© 2004 The American Physical Society.

Funding

We thank the RHIC Operations Group and RCF at BNL, and the NERSC Center at LBNL for their support. This work was supported in part by the HENP Divisions of the Office of Science of the U.S. DOE; the U.S. NSF; the BMBF of Germany; IN2P3, RA, RPL, and EMN of France; EPSRC of the United Kingdom; FAPESP of Brazil; the Russian Ministry of Science and Technology; the Ministry of Education and the NNSFC of China; SFOM of the Czech Republic; FOM and UU of the Netherlands; DAE, DST, and CSIR of the Government of India; and the Swiss NSF.

FundersFunder number
EMN
Russian Ministry of Science and Technology
U.S. Department of Energy EPSCoR
Office of Science Programs
Engineering and Physical Sciences Research Council
Department of Science and Technology, Ministry of Science and Technology, India
Council of Scientific and Industrial Research, India
Government of India, Department of Atomic Energy
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China (NSFC)
Bundesministerium für Bildung und ForschungIN2P3
Bundesministerium für Bildung und Forschung
Ministry of Education China
Neurosciences Foundation

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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