Experimental Highlights: Heavy Quark Physics in Heavy-Ion Collisions at RHIC

doi:10.1051/epjconf/201713706021

Title: Experimental Highlights: Heavy Quark Physics in Heavy-Ion Collisions at RHIC

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Abstract

The discovery at RHIC of large high-p _T suppression and flow of electrons from heavy quarks flavors have altered our view of the hot and dense matter formed in central Au + Au collisions at √s _NN = 200 GeV. These results suggest a large energy loss and flow of heavy quarks in the hot, dense matter. In recent years, the RHIC experiments upgraded the detectors; (1) PHENIX Collaboration installed silicon vertex tracker (VTX) at midrapidity region and forward silicon vertex tracker (FVTX) at the forward rapidity region, and (2) STAR Collaboration installed the heavy flavor tracker (HFT) and the muon telescope detector (MTD) both at the mid-rapidity region. The PHENIX experiments established measurements of ψ (1S ) and ψ (2S ) production as a function of system size, p + p, p + Al, p + Au, and ³He + Au collisions at √s _NN = 200 GeV. In p/ ³He + A collisions at forward rapidity, we observe no difference in the ψ (2S )/ψ (1S ) ratio relative to p + p collisions. At backward rapidity, where the comoving particle density is higher, we find that the ψ (2S ) is preferentially suppressed by a factor ofmore »« less

Authors:

Nouicer, Rachid ^[1]

Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Physics

Publication Date:: 2017-03-22

Research Org.:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

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

OSTI Identifier:: 1362159

Report Number(s):: BNL-113911-2017-JA
Journal ID: ISSN 2100-014X

Grant/Contract Number:: SC0012704

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: EPJ Web of Conferences

Additional Journal Information:: Journal Volume: 137; Journal ID: ISSN 2100-014X

Publisher:: EDP Sciences

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Nouicer, Rachid. Experimental Highlights: Heavy Quark Physics in Heavy-Ion Collisions at RHIC.  United States: N. p., 2017. 
        Web.  doi:10.1051/epjconf/201713706021.

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                    Nouicer, Rachid. Experimental Highlights: Heavy Quark Physics in Heavy-Ion Collisions at RHIC.  United States.  doi:10.1051/epjconf/201713706021.

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                    Nouicer, Rachid. Wed .  
        "Experimental Highlights: Heavy Quark Physics in Heavy-Ion Collisions at RHIC".  United States.  doi:10.1051/epjconf/201713706021.  https://www.osti.gov/servlets/purl/1362159.

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@article{osti_1362159,

  title        = {Experimental Highlights: Heavy Quark Physics in Heavy-Ion Collisions at RHIC},

  author       = {Nouicer, Rachid},

  abstractNote = {The discovery at RHIC of large high-pT suppression and flow of electrons from heavy quarks flavors have altered our view of the hot and dense matter formed in central Au + Au collisions at √sNN = 200 GeV. These results suggest a large energy loss and flow of heavy quarks in the hot, dense matter. In recent years, the RHIC experiments upgraded the detectors; (1) PHENIX Collaboration installed silicon vertex tracker (VTX) at midrapidity region and forward silicon vertex tracker (FVTX) at the forward rapidity region, and (2) STAR Collaboration installed the heavy flavor tracker (HFT) and the muon telescope detector (MTD) both at the mid-rapidity region. The PHENIX experiments established measurements of ψ (1S ) and ψ (2S ) production as a function of system size, p + p, p + Al, p + Au, and 3He + Au collisions at √sNN = 200 GeV. In p/3He + A collisions at forward rapidity, we observe no difference in the ψ (2S )/ψ (1S ) ratio relative to p + p collisions. At backward rapidity, where the comoving particle density is higher, we find that the ψ (2S ) is preferentially suppressed by a factor of two. STAR Collaboration presents the first J/ ψ measurements in the di-muon decay channel in Au + Au at √sNN = 200 GeV at mid-rapidity. In conclusion, we observe a clear J/ψ RAA suppression and qualitatively well described by transport models, including dissociation and regeneration simultaneously.},

  doi          = {10.1051/epjconf/201713706021},

  journal      = {EPJ Web of Conferences},

  issn         = {2100-014X},

  number       = ,

  volume       = 137,

  place        = {United States},

  year         = {2017},

  month        = {3}

}

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