Chinese Physics C > 2001, Vol. 25 > Issue(5): 412-416

Isospin Dependence of Squeeze-out Flow

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China3 Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai 201800, China4 CCAST World Laboratory, Beijing 100080, China

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Abstract：
The squeeze out flow in the reactions of ¹²⁴Sn+ ¹²⁴Sn and ¹²⁴Ba+ ¹²⁴Ba at different energies for different impact parameters was investigated by means of isospin-dependent quantum molecular dynamics model. It was found that the more neutron rich system ( ¹²⁴Sn+ ¹²⁴Sn) exhibited weaker squeeze-out flow. This isospin dependence of the squeeze-out flow is shown to mainly result from the isospin dependence of nucleon nucleon cross section and the symmetry energy. Meanwhile, it is indicated that the squeeze-out flow depends strongly on the impact parameter and incident energy.

References

[1]

ZHANG F S,GEL X.Nuclear Multifragmentation,Beijing:SciencePress,1998(in Chinese)(张丰收,葛凌霄.原子核多重碎裂,北京:科学出版社,1998)2 ZHANG F S.Z.Phys.,1996,A345:163—1703 ZHANG F S,Suraud E.Phys.Lett.,1993,B319:35—414 CHEN L W,ZHANG F S,JIN G M.Phys.Rev.,1998,C58(40):2283–22915 CHEN L W,ZHANG F S,ZHU Z Y.Phys.Rev.,2000,C61:0676016 Scheid W,Greiner W.Phys.Rev.Lett.,1974,32(13):741—7457 Aichelin J.Phys.Rep.,1991,202(5,6):233—3608 Welke G M,Prakash M,Kuo T T S et al.Phys. Rev.,1988,C38(5):2101—21079 Hartnack C,Aichelin J,Stocker H et al.Phys.Lett.,1994,B336:131—13510 Bastid N,Buta A,Crochet P et al.Nucl.Phys.,1997,A622:573—59211 Crochet P,RamiF,Gobbi A et al.Nucl.Phys.,1997,A624:755—77212 Ollitrault J Y.Nucl.Phys.,1998,A638:195c—206c13 CHEN L W,GEL X,ZHANG X D et al.J.Phys.,1997,G23:211—21814 CHEN L W,ZHANG F S,JIN G M et al.Phys.Lett.,1999.B459:21—2615 ZHAN G F S,CHEN L W,MING Z Y,ZHU Z Y.Phys.Rev.,1999,C60:06460416 ZHU Z Y,SHEN W Q,CAI Y H et al.Phys.Lett.,1994,B328:1—417 Chen K.Phys.Rev.,1968,166(4):949—96718 Cugnon J,Mizutani T,Vandermeulen J.Nucl.Phys.,1981,A352:505—53419 Bertsch G F,Gupta S Das.Phys.Rep.,1988,160(4):189—233

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ZHANG Feng-Shou, CHEN Lie-Wen, LI Wen-Fei and ZHU Zhi-Yuan. Isospin Dependence of Squeeze-out Flow[J]. Chinese Physics C, 2001, 25(5): 412-416.

ZHANG Feng-Shou, CHEN Lie-Wen, LI Wen-Fei and ZHU Zhi-Yuan. Isospin Dependence of Squeeze-out Flow[J]. Chinese Physics C, 2001, 25(5): 412-416. shu

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Received: 2000-04-06
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Isospin Dependence of Squeeze-out Flow

Corresponding author:ZHANG Feng-Shou,

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China3 Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai 201800, China4 CCAST World Laboratory, Beijing 100080, China

Received Date:2000-04-06

Accepted Date:1900-01-01

Available Online:2001-05-05

Abstract:The squeeze out flow in the reactions of¹²⁴Sn+¹²⁴Sn and¹²⁴Ba+¹²⁴Ba at different energies for different impact parameters was investigated by means of isospin-dependent quantum molecular dynamics model. It was found that the more neutron rich system (¹²⁴Sn+¹²⁴Sn) exhibited weaker squeeze-out flow. This isospin dependence of the squeeze-out flow is shown to mainly result from the isospin dependence of nucleon nucleon cross section and the symmetry energy. Meanwhile, it is indicated that the squeeze-out flow depends strongly on the impact parameter and incident energy.

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Isospin Dependence of Squeeze-out Flow

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