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Isoscaling Parameter α as a Possible Probe of Medium Effect of Nucleon--Nucleon Cross Section |
| LIU Jian-Ye1,2,3;HAO Huan-Feng2;XING Yong-Zhong1,2,3;ZUO Wei2,3;LEE Xi-Guo2,3 |
| 1Institute of Basic Physics, College of Mathematics-Physics and Information, \\Tianshui Normal University, Tianshui 7410002Institute of Modern Physics, Chinese Academy of Sciences, PO Box 31, Lanzhou 7300003Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 |
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| Cite this article: |
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LIU Jian-Ye, HAO Huan-Feng, XING Yong-Zhong et al 2007 Chin. Phys. Lett. 24 1873-1875 |
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Abstract The medium effect of nucleon--nucleon cross section σmedNN(αm) on the isoscaling parameter α is investigated for two central nuclear reactions 40Ca+40Ca, 60Ca+60Ca within isospin-dependent quantum molecular dynamics at beam energies from 40 to 50MeV/nucleon. It is found that there is the very obvious medium effects of nucleon--nucleon cross section σmedNN(αm) on the isoscaling parameters α. In this case the isoscaling parameter α is a possible probe of the medium effect of nucleon--nucleon cross section σmedNN(αm) in the heavy ion collisions. The mechanism of the above-mentioned properties is studied and discussed.
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25.70.Pg
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Received: 05 March 2007
Published: 25 June 2007
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[1]Xu H S, Tsang M B, Liu T X et al 2000 Phys. Rev. Lett. 85 716
[2]Tsang M B, Friedman W A, Gelbke C K et al 2001 Phys. Rev.Lett. 86 5023
[3]Gelbke C K, Tsang M B, Liu X D et al 2001 Phys. Rev. C 64 054615
[4]Ma Y G, Wang K, Cai X Z, Chen J G, Chen J H, Fang D Q, Guo W etal 2005 Phys. Rev. C 72 064603
[5]Dorso C O, Escudero C R, Ison M and Lopez J A 2006 Phys.Rev. C 73 044601
[6]Souliotis G A, Shetty D V, Eeselsky M V, Chubarian G et al 2003 Phys. Rev. C 68 024605
[7]Souliotis G A, Shetty D V, Kekis A, Bell E et al 2006 Phys. Rev. C 73 024606
[8]Veselsky M, Souliotis G A and Jandel M 2004 Phys. Rev. C 69 044607
[9]Machner H, Aschman D G, Baruth-Ram K et al 2006 Phys.Rev. C 73 044606
[10]Liu J Y, Guo W J, Wang S J, Zuo W, Zhao Q and Yang Y F 2001 Phys. Rev. Lett. 86 975
[11]Bertsch G F and Gupta S Das 1988 Phys. Rep. 1601991
[12]Aichelin A, Rosenhauer A, Peilert G, Stoecker H and Greiner W1987 Phys. Rev. Lett. 58 1926
[13]Aichelin J, Peilert G, Bohnet A, Rosenhauer A et al 1988 Phys. Rev. C 37 2451
[14]Reinhard P G et al 2000 Computat. Nucl. Phys. 1 28
[15]Li B A, Ko C W and Bauer W 1998 Int. J. Mod. Phys. E 7 147
[16] Li B A and W\"{oder Udo Schr 2001 Isospin Physics inHeavy-Ion Collisions at Intermediate Energies (New York: Nova Science)
[17]Klakow D, Welke G and Bauer W 1993 Phys. Rev.C 48 1982
[18]Alkahzov G,Bauer T, Bertini R, Bimbot L, Bing Q,Boudard A, Bruge G, Catz H and Chaumeaux A 1977 Nucl. Phys.A 280 365
[19]Ono A, Danielewicz P and Friedman W A 2003 Phys. Rev.C 68 051601
[20]Liu J Y, Guo W J, Xing Y Z et al 2004 Phys. Rev. C70 034610 Liu J Y, Xing Y Z, Liu H et al 2005 Int. J. Mod. Phys. E 587 |
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