Open AccessJet-Quenching Studies Using Leading Mesons in Cu+Au Collisions at $\sqrt{{}^{s}NN}=200$ GeV
Author(s) -
A. Berdnikov,
Y. Berdnikov,
D. Kotov,
P. V. Radzevich,
S. Zharko
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1400/5/055054
Subject(s) - physics , jet quenching , hadron , nuclear physics , quark–gluon plasma
Quark-gluon plasma (QGP) is a hot and dense color-charged medium, created in ultra-relativistic heavy nuclei collisions. Jet-quenching is one of the evidence for QGP formation and manifests itself in suppressed hadron production at high transverse momenta when compared to proton-proton collisions. We present results of jet-quenching studies in Cu+Au collisions at N s N = 200 GeV using production of leading mesons ( π 0 , η, K S , ω). Measurements are performed with PHENIX spectrometer at RHIC. Yields of π 0 , η, K S , and ω mesons and reconstructed jets show the same suppression level at high transverse momenta region within uncertainties when compared to p + p results. The suppression level of π 0 , η, K S , and ω mesons in Cu+Au collisions is equal within uncertainties to one measured in Au+Au and Cu+Cu collisions at N s N = 200 GeV at similar participant nucleon numbers.