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

Abstract

Here, 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 (p T) for 0 < p T < 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 p T 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.

Authors:
 [1]
  1. Creighton Univ., Omaha, NE (United States). et al.
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Org.:
STAR Collaboration
OSTI Identifier:
1438432
Alternate Identifier(s):
OSTI ID: 1563977
Report Number(s):
BNL-205688-2018-JAAM
Journal ID: ISSN 0370-2693; PII: S0370269318307305; TRN: US1900441
Grant/Contract Number:  
SC0012704; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 786; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; quarkonium; p+p collisions; multiple parton interactions; charged-particle multiplicity

Citation Formats

Adam, Jaroslav. J/ψ production cross section and its dependence on charged-particle multiplicity in p+p collisions at √s = 200 GeV. United States: N. p., 2018. Web. doi:10.1016/j.physletb.2018.09.029.
Adam, Jaroslav. J/ψ production cross section and its dependence on charged-particle multiplicity in p+p collisions at √s = 200 GeV. United States. doi:10.1016/j.physletb.2018.09.029.
Adam, Jaroslav. Fri . "J/ψ production cross section and its dependence on charged-particle multiplicity in p+p collisions at √s = 200 GeV". United States. doi:10.1016/j.physletb.2018.09.029. https://www.osti.gov/servlets/purl/1438432.
@article{osti_1438432,
title = {J/ψ production cross section and its dependence on charged-particle multiplicity in p+p collisions at √s = 200 GeV},
author = {Adam, Jaroslav},
abstractNote = {Here, 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 0 < pT < 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.},
doi = {10.1016/j.physletb.2018.09.029},
journal = {Physics Letters. Section B},
number = ,
volume = 786,
place = {United States},
year = {2018},
month = {5}
}

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