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

Abstract

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.

Authors:
 [1]
  1. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)
Publication Date:
OSTI Identifier:
21325747
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1182; Journal Issue: 1; Conference: 10. conference on the intersections of particle and nuclear physics, San Diego, CA (United States), 26-31 May 2009; Other Information: DOI: 10.1063/1.3293925; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BARYONS; BROOKHAVEN RHIC; COALESCENCE; DEUTERON REACTIONS; GEV RANGE; GOLD 197 TARGET; MODIFICATIONS; MULTIPARTICLE SPECTROMETERS; NUCLEAR MATTER; PARTICLE IDENTIFICATION; PARTICLE PRODUCTION; PARTICLE RAPIDITY; PHI MESONS; QUANTUM CHROMODYNAMICS; TRANSVERSE MOMENTUM

Citation Formats

Xiaoping, Zhang. {phi} meson production and cold nuclear matter effect in d+Au collisions at {radical}(S{sub NN}) = 200 GeV in STAR. United States: N. p., 2009. Web. doi:10.1063/1.3293925.
Xiaoping, Zhang. {phi} meson production and cold nuclear matter effect in d+Au collisions at {radical}(S{sub NN}) = 200 GeV in STAR. United States. https://doi.org/10.1063/1.3293925
Xiaoping, Zhang. Thu . "{phi} meson production and cold nuclear matter effect in d+Au collisions at {radical}(S{sub NN}) = 200 GeV in STAR". United States. https://doi.org/10.1063/1.3293925.
@article{osti_21325747,
title = {{phi} meson production and cold nuclear matter effect in d+Au collisions at {radical}(S{sub NN}) = 200 GeV in STAR},
author = {Xiaoping, Zhang},
abstractNote = {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.},
doi = {10.1063/1.3293925},
url = {https://www.osti.gov/biblio/21325747}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1182,
place = {United States},
year = {2009},
month = {12}
}