Chemical Potential of Resonance Matter and Particle Density, Energy Density

  • The statistical property is studied for the resonance matter produced in relativistic heavy-ion collision. The relation between chemical potential of the resonant particle and net particle density is discussed. The total particle density and the energy density are calculated, and the relations between these densities and the net baryon density are analyzed. The ratio of the total particle density to the normal nuclear density(0.16fm)is estimated. It is about 5-8 in RHIC energy region and 3-6 in the SPS energy region. Finally, the character of the hadronic component at different regions is studied. It is found that in three temperature regions which correspond to the AGS, SPS and RHIC energy region, respectively, the main hadronic component is baryon, strange particle and meson, respectively.
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  • [1] .Cheuk-Yin Wong.Translated by ZHANG Wei-Ning.Introduction toHigh-Energy Heavy-Ion Collisions.The First Edition.Harbin:Publish-ing Company of Harbin Institut e of Technology,2002(in Chinese)(黄卓然著.张卫宁译.高能重离子碰撞导论.第1版.哈尔滨:哈尔滨工业大学出版社,2002)2.WANG Zhong-Qi et al.HEP NP,1994,18:5673.SA Ben-Hao,TAI An,LU Zhong-Dao.HEP NP,1995,19:1019(in Chinese)(萨本豪,台安,陆中道.高能物理与核物理,1995,19:1019)4.SA Ben-Hao,LU Zhong-Dao,SU Zong-Di.HEP NP,2001,25:989-9935.LU Zhong-Dao,Neda Z,Csernai L et al.HEP NP,1997,22:910(in Chinese)(陆中道,Neda Z,Csemai L等.高能物理与核物理,1997,22:910)6.Braun-Munzinger P,Stachel J,Wessels J P et al.Phys.Letts.,1995,B344:43 -487.Braun-Munzinger P,Stachel J,Wessels J P et al.Phys.Lett s.,1996,B365:18.Braun-Munzinger P,Heppe I,St achel J.Phys.Letts.,1999,B465:159.YEN G D et al.Phys.Rev.,1997,C56:221010.YEN G D,Gorenstein M I.Phys.Rev.,1999,C59:278811.Cleymans J,Redl ich K.Phys.Rev.,1999,C60:05490812.ZHANG Z Y et al.Phys.Rev.,2000,C61:06520413.Bravina L V et al.Phys.Rev.,2002,C66:01490614.LU Zhong-Dao,Faessler A,Fuchs C et al.Phys.G:Nucl.Part.Phys.,2002,28:2127 -213115.LU Zhong-Dao,SA Ben-Hao,Amand Faessler et al.HEP NP,2002,26( 5):501-50616.LU Zhong-Dao,Amand Faessler,Fuchs C et al.Phys.Rev.,2002,C66:044905 1- 717.LU Zhong-Dao,SA Ben-Hao,Amand Faessler et al.HEP NP,2002,26( 11):1166-117118.Braun-Munzinger P et al.Phys.Lett.,2001,B518:41
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HU Shou-Yang, FU Yuan-Yong and LU Zhong-Dao. Chemical Potential of Resonance Matter and Particle Density, Energy Density[J]. Chinese Physics C, 2005, 29(5): 472-475.
HU Shou-Yang, FU Yuan-Yong and LU Zhong-Dao. Chemical Potential of Resonance Matter and Particle Density, Energy Density[J]. Chinese Physics C, 2005, 29(5): 472-475. shu
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Received: 2004-09-23
Revised: 2004-11-15
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Chemical Potential of Resonance Matter and Particle Density, Energy Density

    Corresponding author: HU Shou-Yang,
  • China Institute of Atomic Energy,Beijing 102413,China

Abstract: The statistical property is studied for the resonance matter produced in relativistic heavy-ion collision. The relation between chemical potential of the resonant particle and net particle density is discussed. The total particle density and the energy density are calculated, and the relations between these densities and the net baryon density are analyzed. The ratio of the total particle density to the normal nuclear density(0.16fm)is estimated. It is about 5-8 in RHIC energy region and 3-6 in the SPS energy region. Finally, the character of the hadronic component at different regions is studied. It is found that in three temperature regions which correspond to the AGS, SPS and RHIC energy region, respectively, the main hadronic component is baryon, strange particle and meson, respectively.

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