Title

J/psi Production at High Transverse Momenta in p Plus p and Au plu Au Collisions at Root s(NN)=200 GeV

Authors

James L. Drachenberg, Valparaiso University
Adam Gibson, Valparaiso University
David Grosnick, Valparaiso University
Donald D. Koetke, Valparaiso University
Shirvel Stanislaus, Valparaiso University
STAR Collaboration

Document Type

Article

Publication Date

5-2013

Abstract

We report J/psi spectra for transverse momenta P-T > 5 GeV/c at mid-rapidity in p + p and Au + Au collisions at root s(NN) = 200 GeV. The inclusive J/psi spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/psi yields for p(T) > 5 GeV/c in 0-30% central Au + Au collisions relative to the p + p yield scaled by the number of binary nucleon-nucleon collisions in Au + Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-p(T) pi(+/-) and low-p(T) J/psi at RHIC and high-p(T) J/psi at the LHC. (C) 2013 Elsevier B.V. All rights reserved.

Recommended Citation

Drachenberg, James L.; Gibson, Adam; Grosnick, David; Koetke, Donald D.; Stanislaus, Shirvel; and STAR Collaboration, "J/psi Production at High Transverse Momenta in p Plus p and Au plu Au Collisions at Root s(NN)=200 GeV" (2013). Physics and Astronomy Faculty Publications. 53.
https://scholar.valpo.edu/phys_astro_fac_pub/53