φ meson production in the forward/backward rapidity region in Cu + Au collisions at √sNN = 200 GeV

Adare, A. and Makek, Mihael and Zou, L. (PHENIX Collaboration) (2016) φ meson production in the forward/backward rapidity region in Cu + Au collisions at √sNN = 200 GeV. Physical Review C, 93 (2). pp. 24904-13. ISSN 0556-2813

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Abstract

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured φ meson production and its nuclear modification in asymmetric Cu + Au heavy-ion collisions at √sNN = 200 GeV at both forward Cu-going direction (1.2 <y< 2.2) and backward Au-going direction (−2.2 <y< −1.2) rapidities. The measurements are performed via the dimuon decay channel and reported as a function of the number of participating nucleons, rapidity, and transverse momentum. In the most central events, 0%–20% centrality, the φ meson yield integrated over 1 < pT < 5 GeV/c prefers a smaller value, which means a larger nuclear modification, in the Cu-going direction compared to the Au-going direction. Additionally, the nuclear-modification factor in Cu + Au collisions averaged over all centrality is measured to be similar to the previous PHENIX result in d + Au collisions for these rapidities.

Item Type: Article
Date: 4 February 2016
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2016) by the American Physical Society. Received 5 October 2015; published 4 February 2016.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 26 Feb 2016 14:44
Last Modified: 26 Feb 2016 14:44
URI: http://digre.pmf.unizg.hr/id/eprint/4523

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