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{phi} meson production and cold nuclear matter effect in d+Au collisions at {radical}(S{sub NN}) = 200 GeV in STAR

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.3293925· OSTI ID:21325747
 [1]
  1. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)
We report preliminary results of {phi}-meson transverse momentum distribution in most central 200 GeV d+Au collisions, measured from STAR Experiment at RHIC. For the transverse momentum between 2.5 and 4 GeV/c at mid-rapidity (|y|<0.5), the nuclear modification factor of {phi}-meson produced in most central (0-20%) d+Au collisions seems to follow other mesons. Thus, the {phi} meson nuclear modification factor confirms the trend observed at mid-p{sub T} that shows a baryon to meson separation, rather than a hadron mass dependence. The results favor the coalescence as the mechanism for particle production at mid-rapidity and intermediate p{sub T} in most central d+Au200 GeV collisions.
OSTI ID:
21325747
Journal Information:
AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1182; ISSN APCPCS; ISSN 0094-243X
Country of Publication:
United States
Language:
English