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

doi:10.1016/j.physletb.2018.09.029

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

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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:

Adam, Jaroslav ^[1]

Creighton Univ., Omaha, NE (United States). et al.

Publication Date:: 2018-05-11

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.

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                    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.

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                    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.

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@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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DOI: 10.1016/j.physletb.2018.09.029

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