J/$\psi$ and $\psi (2S)$ measurement in p+p collisions at $\sqrt{s}=$ 200 and 500 GeV with the STAR experiment

Abstract

In this paper, results on the J/psi cross section and polarization measured via the dielectron decay channel at mid-rapidity in p+p collisions at 200 and 500 GeV in the STAR experiment are discussed. Also, first measurements of the J/psi production as a function of the charged-particle multiplicity density and of psi(2S) to J/psi ratio at 500 GeV are reported.

4 pages, 3 figures, Proceedings for Strangeness in Quark Matter 2015 conference, July 6-11, 2015, Dubna, Russia

References in corpus (5)

• J/psi (psi') production at the Tevatron and LHC at O(α_s^4v^4) in nonrelativistic QCD
• Upsilon production at the Tevatron and the LHC
• Heavy flavor in heavy-ion collisions at RHIC and RHIC II
• Polarizations of ${\chi }_{c1}$ and ${\chi }_{c2}$ in prompt production at the LHC
• J/$\psi$ and $\psi (2S)$ measurement in $p$+$p$ collisions at $\sqrt{s}=$ 200 and 500 GeV in the STAR experiment

Cited by in corpus (5)

• Production mechanisms of open-heavy flavor mesons
• High energy QCD: multiplicity dependence of quarkonia production
• Single diffractive production of open heavy flavor mesons
• Multiplicity dependence of ${\chi }_c$ and ${\chi }_b$ meson production
• Electroproduction of $D$- and $B$-mesons in high-multiplicity $ep$ collisions