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Chinese Physics C> 1994, Vol. 18> Issue(8) : 741-744 

Hadronic Transport Model Explanation of K+/π+ Ratio in Relativistic Nucleus-nucleus Collisions

  •  China Institute of Atomic Energy,Beijing 102413

  • We propose a simple hadronic transport model for investigating the K+/π+ ratio in relativistic nucleus-nucleus collisions and point out that the thermal motion of baryons and multiple rescattering effect play an important role in the enhancement of K+/π+ ratio.The experimental data of enhancement of K+/π+ ratio could be explained within a reasonable temperature parameter (～150MeV).
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    [1] L.H.Xia and C.M.Ko,Phys.Lett,B222（1989）343;C.M.Ko,Z.G.Wu,L.H.XiaandG.E.Brown,Phys.Rev.Lett,66（1991）2577.[2]B.L.Friman,Nucl.Phys,A498（1989）161c.[3]J.Cleymans,H.Satz,E.Suhonen and D.W.von Oertzem,Phys.Lett,B242（1990）111.[4]C.M.Mader,W.Baner and G.D.Westfall,Phys Rev,C45（1992）2438.[5]R.Mattiello,H.Sorge,H.Stcker and W.Greiner,Phys.Rev Lett,63（1989）1459.[6]Chao Weiqin,Gao Chongshou and ZhuYunlun,Nucl.Phys,A514（1990）,734.[7]任江龙，高能物理和核物理，16（1992）44.[8]B.Nilsson Almqvist and E.Stenlund,Comput.Phys.Comm,43（1988）387.[9]王仲奇，“Fritiof程序的移植和开发，计算物理（待发表）.[10]Y.Miake and G.S.F.Stephans,Z.Phys,C38（1988）135.[11]P.Koch,B.Mller and J.Rafeiski,Phys.Rep. 142（1986）167.[12]R.Hagedorn,Relatlvlstic kinematics,a guide to the kinematic problems of high-energy physics,New York,Benjamin,1963.

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Wang Zhongqi, Sa Benhao, Song Guang, Lu Zhongdao, Zhang Xiaoze and Zheng Yuming. Hadronic Transport Model Explanation of K+/π+ Ratio in Relativistic Nucleus-nucleus Collisions[J]. Chinese Physics C, 1994, 18(8): 741-744.
Wang Zhongqi, Sa Benhao, Song Guang, Lu Zhongdao, Zhang Xiaoze and Zheng Yuming. Hadronic Transport Model Explanation of K+/π+ Ratio in Relativistic Nucleus-nucleus Collisions[J]. Chinese Physics C, 1994, 18(8): 741-744. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Hadronic Transport Model Explanation of K+/π+ Ratio in Relativistic Nucleus-nucleus Collisions

    Corresponding author: Wang Zhongqi,
  • China Institute of Atomic Energy,Beijing 102413
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1994-08-05

Abstract: We propose a simple hadronic transport model for investigating the K+/π+ ratio in relativistic nucleus-nucleus collisions and point out that the thermal motion of baryons and multiple rescattering effect play an important role in the enhancement of K+/π+ ratio.The experimental data of enhancement of K+/π+ ratio could be explained within a reasonable temperature parameter (～150MeV).

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