J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200GeV

STAR Collaboration

doi:10.1016/j.physletb.2013.04.010

J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200GeV

STAR Collaboration

AGH University of Krakow
Joint Institute for Nuclear Research
Panjab University
Variable Energy Cyclotron Centre
SUBATECH
Brookhaven National Laboratory
Alikhanov Institute for Theoretical and Experimental Physics
Kent State University
Ohio State University
Massachusetts Institute of Technology
Czech Academy of Sciences
University of Houston
University of Illinois at Chicago
University of Jammu
University of Washington
Czech Technical University in Prague
Moscow Engineering Physics Institute
University of California at Davis
Yale University
Old Dominion University
Rice University
Chinese Academy of Sciences
University of California at Los Angeles
Texas A&M University
University of Science and Technology of China
Central China Normal University
Tsinghua University
Creighton University
Cracow University of Technology
University of California at Berkeley
Institute of Physics Bhubaneswar
University of Texas at Austin
Shandong University
Universidade Estadual de Campinas
Indiana University Bloomington
Lawrence Berkeley National Laboratory
CAS - Institute of Modern Physics
Wayne State University
University of Kentucky
Valparaiso University
Argonne National Laboratory
Pennsylvania State University
Purdue University
National Institute of Science Education and Research
Warsaw University of Technology
Goethe University Frankfurt
Temple University
Universidade de São Paulo
Indian Institute of Technology Bombay
University of Birmingham
Institute for High Energy Physics
Michigan State University
Pusan National University
Institute of Nuclear Physics PAN
University of Zagreb
University of Rajasthan
Max Planck Institute for Physics (Werner Heisenberg Institute)
United States Naval Academy

Research output: Contribution to journal › Article › peer-review

103 Scopus citations

Abstract

We report J/ψ spectra for transverse momenta p_T>5GeV/c at mid-rapidity in p+p and Au+Au collisions at sNN=200GeV. The inclusive J/ψ spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/ψ yields for p_T>5GeV/c in 0-30% central Au+Au collisions relative to the p+p yield scaled by the number of binary nucleon-nucleon collisions in Au+Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-p_T π^± and low-p_T J/ψ at RHIC and high-p_T J/ψ at the LHC.

Original language	English
Pages (from-to)	55-62
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	722
Issue number	1-3
DOIs	https://doi.org/10.1016/j.physletb.2013.04.010
State	Published - 13 May 2013
Externally published	Yes

Keywords

Color-screening
Heavy-ion collisions
J/ψ suppression
Quarkonium
STAR

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10.1016/j.physletb.2013.04.010

Cite this

@article{0639ace330644e79a26c84a0969822d0,

title = "J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200GeV",

abstract = "We report J/ψ spectra for transverse momenta pT>5GeV/c at mid-rapidity in p+p and Au+Au collisions at sNN=200GeV. The inclusive J/ψ spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/ψ yields for pT>5GeV/c in 0-30\% central Au+Au collisions relative to the p+p yield scaled by the number of binary nucleon-nucleon collisions in Au+Au collisions. In 30-60\% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-pT π± and low-pT J/ψ at RHIC and high-pT J/ψ at the LHC.",

keywords = "Color-screening, Heavy-ion collisions, J/ψ suppression, Quarkonium, STAR",

author = "L. Adamczyk and G. Agakishiev and Aggarwal, \{M. M.\} and Z. Ahammed and S. Kabana and \{STAR Collaboration\}",

year = "2013",

month = may,

day = "13",

doi = "10.1016/j.physletb.2013.04.010",

language = "English",

volume = "722",

pages = "55--62",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

number = "1-3",

}

TY - JOUR

T1 - J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200GeV

AU - Adamczyk, L.

AU - Agakishiev, G.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Kabana, S.

AU - STAR Collaboration

PY - 2013/5/13

Y1 - 2013/5/13

N2 - We report J/ψ spectra for transverse momenta pT>5GeV/c at mid-rapidity in p+p and Au+Au collisions at sNN=200GeV. The inclusive J/ψ spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/ψ yields for pT>5GeV/c in 0-30% central Au+Au collisions relative to the p+p yield scaled by the number of binary nucleon-nucleon collisions in Au+Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-pT π± and low-pT J/ψ at RHIC and high-pT J/ψ at the LHC.

AB - We report J/ψ spectra for transverse momenta pT>5GeV/c at mid-rapidity in p+p and Au+Au collisions at sNN=200GeV. The inclusive J/ψ spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/ψ yields for pT>5GeV/c in 0-30% central Au+Au collisions relative to the p+p yield scaled by the number of binary nucleon-nucleon collisions in Au+Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-pT π± and low-pT J/ψ at RHIC and high-pT J/ψ at the LHC.

KW - Color-screening

KW - Heavy-ion collisions

KW - J/ψ suppression

KW - Quarkonium

KW - STAR

UR - https://www.scopus.com/pages/publications/84876837006

U2 - 10.1016/j.physletb.2013.04.010

DO - 10.1016/j.physletb.2013.04.010

M3 - Article

AN - SCOPUS:84876837006

SN - 0370-2693

VL - 722

SP - 55

EP - 62

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-3

ER -

J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200GeV

Abstract

Keywords

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