English

Recent Heavy Flavor Results Utilizing the FVTX in PHENIX at RHIC

Nuclear Experiment 2019-08-13 v1 High Energy Physics - Experiment

Abstract

Heavy flavor and quarkona production are important hard probes to test the Quantum Chromodynamics (QCD) and measure the properties of the Quark Gluon Plasma (QGP) created in high energy heavy ion collisions. The new PHENIX mid- and forward-rapidity silicon vertex detectors provide precise Distance of Closest Approach (DCA) determination, allowing charm and bottom yields identification, and improve di-muon mass resolution for charmonia studies. The relative ψ(2S)\psi(2S) over J/ψJ/\psi(1S) yields measured in pp+pp, pp+Al and pp+Au data at s=\sqrt{s}=200 GeV help us to understand final state effects on the charmonia production. Direct access to B-meson production has been enabled via measurements of non-prompt J/ψμ++μJ/\psi \to \mu^{+} + \mu^{-} in pp+pp collisions at s=510\sqrt{s} = 510 GeV and Cu+Au collisions at s=200\sqrt{s} = 200 GeV. The fraction of B-meson decays in J/ψ\psi yields in the pp+pp measurement agrees with higher energy results from Tevatron and LHC. This fraction is enhanced in Cu+Au collisions suggesting the B-meson yield is not modified by the medium whereas J/ψ\psi is strongly suppressed.

Keywords

Cite

@article{arxiv.1609.05424,
  title  = {Recent Heavy Flavor Results Utilizing the FVTX in PHENIX at RHIC},
  author = {Xuan Li},
  journal= {arXiv preprint arXiv:1609.05424},
  year   = {2019}
}

Comments

4 pages, 3 figures, talk in the Strangeness in Quark Matter 2016 (27 June 2016 - 1 July 2016), UC Berkeley, USA