Measurements of charmonium production in p+p, p+Au, and Au+Au collisions at sNN=200 GeV with the STAR experiment

doi:10.1016/j.nuclphysa.2017.04.020

Title: Measurements of charmonium production in p+p, p+Au, and Au+Au collisions at $\sqrt{s_{NN}} = 200 GeV$ with the STAR experiment

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Here, we present the first results from the STAR MTD of mid-rapidity charmonium measurements via the di-muon decay channel in p+p, p+Au, and Au+Au collisions at √S _NN = 200 GeV at RHIC. The inclusive J/Ψ production cross section in p+p collisions can be described by the Non-Relativistic QCD (NRQCD) formalism coupled with the color glass condensate e ective theory (CGC) at low transverse momentum (p _T) and next-to-leading order NRQCD at high p _T. The nuclear modification factor in p+Au collisions for inclusive J/Ψ is below unity at low p _T and consistent with unity at high p _T, which can be described by calculations including both nuclear PDF and nuclear absorption e ects. The double ratio of inclusive J/Ψ and Ψ(2S) production rates for 0 < p _T < 10 GeV/c at mid-rapidity between p+p and p+Au collisions is measured to be 1.37 0.42 0.19. The nuclear modification factor in Au+Au collisions for inclusive J/Ψ shows significant J/Ψ suppression at high p _T in central collisions and can be qualitatively described by transport models including dissociation and regeneration contributions.

Authors:

Todoroki, Takahito ^[1]

Brookhaven National Lab. (BNL), Upton, NY (United States). et al.

Publication Date:: 2017-09-25

Report Number(s):: BNL-114477-2017-JA
Journal ID: ISSN 0375-9474; R&D Project: PO 004; PII: S037594741730091X

Grant/Contract Number:: SC0012704

Type:: Accepted Manuscript

Journal Name:: Nuclear Physics. A

Additional Journal Information:: Journal Volume: 967; Journal Issue: C; Journal ID: ISSN 0375-9474

Publisher:: Elsevier

Research Org:: Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)

Sponsoring Org:: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

Contributing Orgs:: STAR Collaboration

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Relativistic Heavy Ion Collider; heavy-ion collisions; quarkonium; J/Ψ suppression; color screening; cold nuclear matter effect

OSTI Identifier:: 1408722


                    Todoroki, Takahito. Measurements of charmonium production in p+p, p+Au, and Au+Au collisions at sNN=200 GeV with the STAR experiment.  United States: N. p.,  
        Web.  doi:10.1016/j.nuclphysa.2017.04.020.

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                    Todoroki, Takahito. Measurements of charmonium production in p+p, p+Au, and Au+Au collisions at sNN=200 GeV with the STAR experiment.  United States.  doi:10.1016/j.nuclphysa.2017.04.020.

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                    Todoroki, Takahito. 2017.  
        "Measurements of charmonium production in p+p, p+Au, and Au+Au collisions at sNN=200 GeV with the STAR experiment".  United States.  
        doi:10.1016/j.nuclphysa.2017.04.020.  https://www.osti.gov/servlets/purl/1408722.

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@article{osti_1408722,

  title        = {Measurements of charmonium production in p+p, p+Au, and Au+Au collisions at sNN=200 GeV with the STAR experiment},

  author       = {Todoroki, Takahito},

  abstractNote = {Here, we present the first results from the STAR MTD of mid-rapidity charmonium measurements via the di-muon decay channel in p+p, p+Au, and Au+Au collisions at √SNN = 200 GeV at RHIC. The inclusive J/Ψ production cross section in p+p collisions can be described by the Non-Relativistic QCD (NRQCD) formalism coupled with the color glass condensate e ective theory (CGC) at low transverse momentum (pT) and next-to-leading order NRQCD at high pT. The nuclear modification factor in p+Au collisions for inclusive J/Ψ is below unity at low pT and consistent with unity at high pT, which can be described by calculations including both nuclear PDF and nuclear absorption e ects. The double ratio of inclusive J/Ψ and Ψ(2S) production rates for 0 < pT < 10 GeV/c at mid-rapidity between p+p and p+Au collisions is measured to be 1.37 0.42 0.19. The nuclear modification factor in Au+Au collisions for inclusive J/Ψ shows significant J/Ψ suppression at high pT in central collisions and can be qualitatively described by transport models including dissociation and regeneration contributions.},

  doi          = {10.1016/j.nuclphysa.2017.04.020},

  journal      = {Nuclear Physics. A},

  number       = C,

  volume       = 967,

  place        = {United States},

  year         = {2017},

  month        = {9}

}

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Free Publicly Accessible Full Text
Accepted Manuscript (DOE)
Publisher's Version of Record
10.1016/j.nuclphysa.2017.04.020
https://doi.org/10.1016/j.nuclphysa.2017.04.020

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Title: Measurements of charmonium production in p+p, p+Au, and Au+Au collisions at s NN = 200 GeV with the STAR experiment

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resulting from DOE research funding

Title: Measurements of charmonium production in p+p, p+Au, and Au+Au collisions at $\sqrt{s_{NN}} = 200 GeV$ with the STAR experiment