J/ψ production cross section and its dependence on charged-particle multiplicity in p + p collisions at s=200 GeV

J Adam , Deryk Anderson , Fu-Kuo Chang , Xin-Nan Chen , Xin-Nan Chen , J Cheng , Y. Guo , Shi Huang , Hong-Zhong HUANG , Wei-Te Huang , Daniel Kikoła , Adam Kisiel , Leszek Kosarzewski , SS. Kumar , W. Li , Fengwei Liu , Pengfei Liu , Lin Ma , Mayer J. R. R. , Bernd Page , Jan Pluta , Joanna Porter-Sobieraj , J. Schambach , R Sikora , S. Tripathy , Cheng-Zhong Xu , J. W. Xu , S. Yang , Wuqiang Q Yang , Hanna Zbroszczyk , Liren Zhang , Jian Zhang , Jian Zhang , J Zhao , X. Zhu , Andrzej Lipiec , Sebastian Siejka , Piotr Szymański

Abstract

We present a measurement of inclusive J/ψ production at mid-rapidity (|y|<1) in p+p collisions at a center-of-mass energy of s=200 GeV with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The differential production cross section for J/ψ as a function of transverse momentum (pT) for 0T<14 GeV/c and the total cross section are reported and compared to calculations from the color evaporation model and the non-relativistic Quantum Chromodynamics model. The dependence of J/ψ relative yields in three pT intervals on charged-particle multiplicity at mid-rapidity is measured for the first time in p+p collisions at s=200 GeV and compared with that measured at s=7 TeV, PYTHIA8 and EPOS3 Monte Carlo generators, and the Percolation model prediction.
Collective authorL. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, N.N. Ajita.....
Author J Adam - [Creighton University]
J Adam,,
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, Deryk Anderson - [Texas A and M University]
Deryk Anderson ,,
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, Fu-Kuo Chang - [National Cheng Kung University]
Fu-Kuo Chang,,
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, Xin-Nan Chen
Xin-Nan Chen,,
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, Xin-Nan Chen
Xin-Nan Chen,,
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, J Cheng - [Tsinghua University]
J Cheng,,
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, Y. Guo - [Kent State University]
Y. Guo,,
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, Shi Huang - [Stony Brook University]
Shi Huang,,
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, Hong-Zhong HUANG - [University of California, Los Angeles]
Hong-Zhong HUANG ,,
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, Wei-Te Huang
Wei-Te Huang,,
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et al.`
Total number of authors349
Journal seriesPhysics Letters B, ISSN 0370-2693, (A 40 pkt)
Issue year2018
Vol786
Pages87-93
Publication size in sheets0.5
ASJC Classification3106 Nuclear and High Energy Physics
DOIDOI:10.1016/j.physletb.2018.09.029
Languageen angielski
Score (nominal)40
ScoreMinisterial score = 35.0, 18-04-2019, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 18-04-2019, ArticleFromJournal
Publication indicators Scopus Citations = 0; WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.548; WoS Impact Factor: 2017 = 4.254 (2) - 2017=3.968 (5)
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