Simulation of Heavy-Ion Collision With Isospi-Separated RVUU Model

Chu Zili; Zheng Yuming

Chinese Physics C> 1998, Vol. 22> Issue(5) : 429-433

Simulation of Heavy-Ion Collision With Isospi-Separated RVUU Model

Chu Zili ^, ,
Zheng Yuming

China Institute of Atomic of Energy, Beijing 102413

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Abstract：
We generalize the previous RVUU model to he able to identify the isospin degree of freedom of particles. This modified model is used to simulate the particle production in Au+Au collision at 1GeV/u. The calculated momentum spectra of p, π⁺ and K⁺ particles and multiplicities of the π+ and K⁺ and the ratio K⁺/π⁺ as a function of the number of participatiang nucleons agree very well with experimental data. The physical origin of the ratio K⁺/π⁺ as function of participating nucleons is discussed.

References

[1]

Zheng Yuming, Chu Zili, Chineise Phys. Lett., 1996, 13:730. [2] Chu Zili, Zheng Yuming, Wang Fei et al. High Energ. Phys. and Nucl Phys. (in Chinese), 1996, 20:438 (储自力、郑玉明，王飞等，高能物理与核物理，1996, 20:438) [3] Ko C M. Nucl. Phys., 1989, A495: 321C. [4] Zheng Yuming, Ke Zhiming, Fang Xushan, Chinese Science Bulletin (in Chinese), 1994, 39: 120; 1074.(郑玉明、柯治明、方绪珊，科学通报，1994 39:120x1074) [5] Cugnon J, Kinet D Vandeitneullen J. Nucl. Phys., 1981, A352:505. [6] Fang X S, Ko C M, Li G Q et al. Nucl. Phys., 1994, A575:766. [7] MisKowiec D, Ahner W et al. Phys. Rev. Lett., 1994, 72:3650. [8] Chu Zili, Zheng Yuming, Wang Fei et al. High Energ. Phys, and Nucl. Phys. ( in Chinese), 1995, 19:365(储自力、郑玉明、王飞等，高能物理与核物理，1995, 19:365.)

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Chu Zili and Zheng Yuming. Simulation of Heavy-Ion Collision With Isospi-Separated RVUU Model[J]. Chinese Physics C, 1998, 22(5): 429-433.

Chu Zili and Zheng Yuming. Simulation of Heavy-Ion Collision With Isospi-Separated RVUU Model[J]. Chinese Physics C, 1998, 22(5): 429-433. shu

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Received: 1900-01-01
Revised: 1900-01-01

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