"φ Meson Production In d + Au Collisions At √sNN =200 GeV" by Andrew Marshall Adare, Gyöngyi Baksay et al.
 

Document Type

Article

Publication Title

Physical Review C

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.

DOI

10.1103/PhysRevC.92.044909

Publication Date

2015

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