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Title: {phi} and {omega} production in relativistic heavy-ion collisions in a dynamical quark coalescence model

Abstract

Based on the phase-space information obtained from a multiphase transport model within the string-melting scenario for strange and antistrange quarks, we study the yields and transverse-momentum spectra of {phi} mesons and {omega} ({omega}{sup -}+{omega}{sup +}) baryons and their anisotropic flows in Au + Au collisions at RHIC using a dynamical quark coalescence model that includes the effect from quark phase-space distributions inside hadrons. With current quark masses and fixing the {phi} and {omega} radii from fitting measured yields, we first study the ratio of the yield of {omega} baryons to that of {phi} mesons as well as their elliptic and fourth-order flows as functions of their transverse momentum. How the elliptic and fourth-order flows of {phi} mesons and {omega} baryons are related to those of strange and antistrange quarks is then examined. The dependence of these results on {phi} and {omega} radii as well as on the strange quark mass is also studied.

Authors:
 [1];  [2];  [3]
  1. Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240 (China)
  2. (China)
  3. Cyclotron Institute and Physics Department, Texas A and M University, College Station, Texas 77843-3366 (United States)
Publication Date:
OSTI Identifier:
20771469
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 73; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevC.73.044903; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ANISOTROPY; BROOKHAVEN RHIC; COALESCENCE; DISTRIBUTION; GOLD 197 REACTIONS; GOLD 197 TARGET; NUCLEAR REACTION YIELD; OMEGA BARYONS; PARTICLE RADII; PHASE SPACE; PHI-1020 MESONS; PHI-1680 MESONS; RELATIVISTIC RANGE; S QUARKS; TRANSPORT THEORY; TRANSVERSE MOMENTUM

Citation Formats

Chen Liewen, Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, and Ko Cheming. {phi} and {omega} production in relativistic heavy-ion collisions in a dynamical quark coalescence model. United States: N. p., 2006. Web. doi:10.1103/PhysRevC.73.044903.
Chen Liewen, Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, & Ko Cheming. {phi} and {omega} production in relativistic heavy-ion collisions in a dynamical quark coalescence model. United States. doi:10.1103/PhysRevC.73.044903.
Chen Liewen, Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, and Ko Cheming. Sat . "{phi} and {omega} production in relativistic heavy-ion collisions in a dynamical quark coalescence model". United States. doi:10.1103/PhysRevC.73.044903.
@article{osti_20771469,
title = {{phi} and {omega} production in relativistic heavy-ion collisions in a dynamical quark coalescence model},
author = {Chen Liewen and Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 and Ko Cheming},
abstractNote = {Based on the phase-space information obtained from a multiphase transport model within the string-melting scenario for strange and antistrange quarks, we study the yields and transverse-momentum spectra of {phi} mesons and {omega} ({omega}{sup -}+{omega}{sup +}) baryons and their anisotropic flows in Au + Au collisions at RHIC using a dynamical quark coalescence model that includes the effect from quark phase-space distributions inside hadrons. With current quark masses and fixing the {phi} and {omega} radii from fitting measured yields, we first study the ratio of the yield of {omega} baryons to that of {phi} mesons as well as their elliptic and fourth-order flows as functions of their transverse momentum. How the elliptic and fourth-order flows of {phi} mesons and {omega} baryons are related to those of strange and antistrange quarks is then examined. The dependence of these results on {phi} and {omega} radii as well as on the strange quark mass is also studied.},
doi = {10.1103/PhysRevC.73.044903},
journal = {Physical Review. C, Nuclear Physics},
number = 4,
volume = 73,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2006},
month = {Sat Apr 15 00:00:00 EDT 2006}
}