Secondary Collision and the Enhancement of the K<SUP>+</SUP>π<SUP>+</SUP> Ratio in the High Energy Heavy-ion Collision

REN Jiang-Long

Chinese Physics C> 1992, Vol. 16> Issue(1) : 44-50

Secondary Collision and the Enhancement of the K⁺π⁺ Ratio in the High Energy Heavy-ion Collision

REN Jiang-Long ^,

Institute of High Energy Physics,Academia,Beijing 100039

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Abstract：
The enhancement of K⁺/π⁺ ratio in the high energy heavy-ion collision is believed to be a possible signature of the quark gluon plasma.Based on the Participant Nucleon Model and the concept of the formation time of secondary particles,the K⁺/π⁺ ratio in the central collision of Si(14.5GeV/c) and Au are calculated by Monte Carlo simulation.The following secondary collisions are considered.πN→K⁺Y、ππ→KK and the single charge exchange reaction between pions and nucleons.The calculation results show that the increased K⁺/π⁺ ratio caused by these secondary collisions is not enough to explain the experimental data observed by the E802 group at BNL.

References

[1]

F. Karsh, CERN-TH-5568/89.[2] P. Koch, B. Mueller, and J. Rafelski, phys. Rep., 142(1986), 167.[3] S. Nagamia, Nucl. Phys., A488(1988), 3C; Y. Miake and G. StePhans, Z. Phys., C38(1988), 135.[4] B. Nikon-Almquist and E. Stenlund, Computer Phys. Commun., 43(1987), 387.[5] H. R. Schmidt, Z. Phys., C38(1988), 109. WA80 Collaboration Preprint GSI-87-81.[6] R. Anishetty, P. Koeller and L. Mclerran, Phys. Rev., D22(1980), 2793.[7] Chao Wei-qin, Charles B. Chiu, He Zuoxiu .and Don M, Tow, Phys. Rev. Lett., 44(1980), 518.[8] Ren Jiang long, Chao Wei-qin, Commun. Theor, Phys. 12(1989), 299.[9] Compilation of Cross Section, CERN-HERA 83-01.[10] J. Kapusta, A. Mekjian, Phys. Rev., D33(1986), 1304.[11] S. D. Protopopescu et al., Phys. Rev., D7(1973), 1279.[12] G. Grayer, et al., л-л scattering-1973, Proceeding of the International Conference, edited by P. K. Williams,and V, Hagopian (AIP. New York, 1973), p. 117.[13] J. Ranft, Phys. Rev.,D37(1988), 1842, H. Sorge; A. Keitz, R. Mattiello, H. Stocker and W. Greiner, UFTPpreprint 245/1990[14] Chao Wei-qin,Gao Chong-shou and Zhu Yun-lun, Nuel. Phys., A514(1990), 734.

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[3]	Zhang Weigang . Correlative Degree and Collective Sideward Flow of Final State Particles in High Energy Heavy Ion Collisions. Chinese Physics C, 1999, 23(4): 367-374.
[4]	Li Qingfeng , Li Zhuxia . Kaon Production and Flow in Relativistic Heavy-Ion Collisions. Chinese Physics C, 1998, 22(12): 1119-1127.
[5]	Yang Xiaofeng . Transverse Momentum Distribution of Final State π in Relativistic Heavy Ion Collisions. Chinese Physics C, 1997, 21(1): 51-57.
[6]	Huo Lei , Liu Yiming , Zhang Weining , Jiang Yuzhen . Polar Distribution of Final State Particles in High Energy Heavy Ion Collisions. Chinese Physics C, 1996, 20(4): 311-316.
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[9]	Ge Lingxiao , Zhang Xiaodong , Zhu Quanling . Intermittency in the Heavy ion Collisions at Intermediate and High Energies. Chinese Physics C, 1994, 18(5): 428-432.
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[15]	GE Ling-Xiao , ZHANG Jian-Ming , ZHANG Feng-Shou , ZHUO Yi-Zhong . The Properties of Nuclear Collective Flow in the Intermediate and High Energy Heavy-ion Collisions. Chinese Physics C, 1991, 15(11): 1041-1048.
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[17]	LIU Jian-Ye , GE Yu-Cheng . Nuclear Matter Density,Collision Number and Entropy in Dynamics Process of Intermediate High Energy Heavy Ion Collision. Chinese Physics C, 1991, 15(6): 556-561.
[18]	ZHU Yun-Lun , ZHAO Wei-Qin , GAO Chong-Shou . Effect of Secondary Collisions on the K⁺/π⁺ Ratio in RHIC. Chinese Physics C, 1991, 15(7): 606-614.
[19]	LIU Jian-Ye , LI Jun-Qing , QIAO Wei-Min , CHEN Pei-Jun , SHEN Wen-Qing , TAN Nan-Hong . THE SHELL EFFECTS IN HEAVY ION COLLISIONS FOR LOW BOBARDMENT ENERGIES. Chinese Physics C, 1988, 12(6): 840-847.
[20]	GE Ling-Xiao , SHEN Wen-Qing , LIU Jian-Ye , WU Guo-Hua . MASS DRIFT IN HEAVY ION REACTION. Chinese Physics C, 1987, 11(5): 674-681.

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REN Jiang-Long. Secondary Collision and the Enhancement of the K⁺π⁺ Ratio in the High Energy Heavy-ion Collision[J]. Chinese Physics C, 1992, 16(1): 44-50.

REN Jiang-Long. Secondary Collision and the Enhancement of the K⁺π⁺ Ratio in the High Energy Heavy-ion Collision[J]. Chinese Physics C, 1992, 16(1): 44-50. shu

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Received: 1900-01-01
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Secondary Collision and the Enhancement of the K⁺π⁺ Ratio in the High Energy Heavy-ion Collision

REN Jiang-Long ^,

Corresponding author: REN Jiang-Long,

Institute of High Energy Physics,Academia,Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1992-01-05

Abstract: The enhancement of K⁺/π⁺ ratio in the high energy heavy-ion collision is believed to be a possible signature of the quark gluon plasma.Based on the Participant Nucleon Model and the concept of the formation time of secondary particles,the K⁺/π⁺ ratio in the central collision of Si(14.5GeV/c) and Au are calculated by Monte Carlo simulation.The following secondary collisions are considered.πN→K⁺Y、ππ→KK and the single charge exchange reaction between pions and nucleons.The calculation results show that the increased K⁺/π⁺ ratio caused by these secondary collisions is not enough to explain the experimental data observed by the E802 group at BNL.

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Secondary Collision and the Enhancement of the K⁺π⁺ Ratio in the High Energy Heavy-ion Collision

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Secondary Collision and the Enhancement of the K⁺π⁺ Ratio in the High Energy Heavy-ion Collision

Secondary Collision and the Enhancement of the K⁺π⁺ Ratio in the High Energy Heavy-ion Collision