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

doi:10.1103/PhysRevC.73.044903

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

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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:

Chen Liewen ^[1]; Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 ^[2]; Ko Cheming ^[3]

Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240 (China)
(China)
Cyclotron Institute and Physics Department, Texas A and M University, College Station, Texas 77843-3366 (United States)

Publication Date:: Sat Apr 15 00:00:00 EDT 2006

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.

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                    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.

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                    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.

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@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}

}

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DOI: 10.1103/PhysRevC.73.044903

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