PRODUCTION OF K*(892) MESONS IN CU+AU COLLISIONS AT √(s_NN) = 200 GEV

Abstract

In this paper we measured invariant transverse momentum spectra and nuclear modification factors of K*(892)-mesons in Cu + Au collisions at √(s_NN ) = 200 GeV. The measurements were performed in five centrality bins in the range of transverse momentum from 2,0 to 5,75 GeV/c in the PHENIX experiment on the RHIC. Nuclear modification factors were compared with previously obtained PHENIX data in Cu + Cu collisions at √(s_NN ) = 200 GeV. The nuclear modification factors of K*-mesons in Cu + Cu and Cu + Au collisions at the same values of a number of participants (N_part) have a similar shape.

Keywords

• quark gluon plasma
• jet quenching heavy ion collision
• strangeness
• nuclear modification factor