Probinhg the High Density Behavior of the Symmetry Energy by Using Proton Elliptic Flow

ZHANG Fang; ZUO Wei; YONG Gao-Chan

Chinese Physics C> 2007, Vol. 31> Issue(8) : 741-744

Probinhg the High Density Behavior of the Symmetry Energy by Using Proton Elliptic Flow

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Department of Physics and Technology Lanzhou University, Lanzhou 730000, China3 Graduate University of Chinese Academy of Sciences, Beijing 100049, China4 Center of Theoretical Physics and Interdisciplinary Physics, Lanzhou University, Lanzhou 730000, China

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Abstract：
Based on the isospin- and momentum-dependent transport model IBUU04, we calculated the reaction of the ¹³²Sn+¹²⁴Sn systems in semi-central collisions at beam energies of 400/A MeV, 600/A MeV and 800/A MeV by adopting two different density dependent symmetry energies. It was found that the proton differential elliptic flow as a function of transverse momentum is quite sensitive to the density dependence of symmetry energy, especially for the considered beam energy range. Therefore the proton differential elliptic flow may be considered as a robust probe for investigating the high density behavior of symmetry energy in intermediate energy heavy ion collisions.

References

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ZHANG Fang, ZUO Wei and YONG Gao-Chan. Probinhg the High Density Behavior of the Symmetry Energy by Using Proton Elliptic Flow[J]. Chinese Physics C, 2007, 31(8): 741-744.

ZHANG Fang, ZUO Wei and YONG Gao-Chan. Probinhg the High Density Behavior of the Symmetry Energy by Using Proton Elliptic Flow[J]. Chinese Physics C, 2007, 31(8): 741-744. shu

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Received: 2006-07-27
Revised: 2007-03-28

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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

Probinhg the High Density Behavior of the Symmetry Energy by Using Proton Elliptic Flow

Corresponding author: ZUO Wei,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Department of Physics and Technology Lanzhou University, Lanzhou 730000, China3 Graduate University of Chinese Academy of Sciences, Beijing 100049, China4 Center of Theoretical Physics and Interdisciplinary Physics, Lanzhou University, Lanzhou 730000, China

Received Date: 2006-07-27

Accepted Date: 2007-03-28

Available Online: 2007-08-05

Abstract: Based on the isospin- and momentum-dependent transport model IBUU04, we calculated the reaction of the ¹³²Sn+¹²⁴Sn systems in semi-central collisions at beam energies of 400/A MeV, 600/A MeV and 800/A MeV by adopting two different density dependent symmetry energies. It was found that the proton differential elliptic flow as a function of transverse momentum is quite sensitive to the density dependence of symmetry energy, especially for the considered beam energy range. Therefore the proton differential elliptic flow may be considered as a robust probe for investigating the high density behavior of symmetry energy in intermediate energy heavy ion collisions.

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Probinhg the High Density Behavior of the Symmetry Energy by Using Proton Elliptic Flow

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