ϕ meson production in d+Au collisions at √sNN=200GeV

Adare, A. and Makek, Mihael and Zou, L. (PHENIX Collaboration) (2015) ϕ meson production in d+Au collisions at √sNN=200GeV. Physical Review C, 92 (4). pp. 44909-14. ISSN 0556-2813

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Abstract

The PHENIX Collaboration has measured ϕ meson production in d+Au collisions at √sNN=200 GeV using the dimuon and dielectron decay channels. The ϕ meson is measured in the forward (backward) d-going (Au-going) direction, 1.2<y<2.2 (−2.2<y<−1.2) in the transverse-momentum (pT) range from 1–7 GeV/c and at midrapidity |y|<0.35 in the pT range below 7 GeV/c. The ϕ meson invariant yields and nuclear-modification factors as a function of pT, rapidity, and centrality are reported. An enhancement of ϕ meson production is observed in the Au-going direction, while suppression is seen in the d-going direction, and no modification is observed at midrapidity relative to the yield in p+p collisions scaled by the number of binary collisions. Similar behavior was previously observed for inclusive charged hadrons and open heavy flavor, indicating similar cold-nuclear-matter effects.

Item Type: Article
Date: 19 October 2015
Subjects: NATURAL SCIENCES > Physics > Nuclear Physics
Additional Information: Copyright (2015) by the American Physical Society. Received 30 June 2015; published 19 October 2015.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 19 Nov 2015 12:55
Last Modified: 27 Feb 2016 07:21
URI: http://digre.pmf.unizg.hr/id/eprint/4357

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