Influence of Isospin\, Dependence\, of\, Nucleon-Nucleon\, Cross\, Section\, and\, Momentum\, DependentInteraction on the Isoscaling in Intermediate Energy Collisions

HAO Huan-Feng; XING Yong-Zhong; LIU Jian-Ye

Chinese Physics C> 2007, Vol. 31> Issue(7) : 651-654

Influence of Isospin\, Dependence\, of\, Nucleon-Nucleon\, Cross\, Section\, and\, Momentum\, DependentInteraction on the Isoscaling in Intermediate Energy Collisions

Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China2 The Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China3 Institute of Fundamental Physics, Tianshui Normal College, Gansu Tianshui 741000, China4 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

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The influences of the isospin dependent in-medium nucleon-nucleon cross section and the Momentum-Dependent Interaction(MDI) on the isotope scaling have been investigated within the Isospin dependent Quantum Molecular Dynamics Model(IQMD). The results show that both the isospin dependent in-medium nucleon-nucleon cross section and the momentum interaction reduce the isoscaling parameter α appreciably, which means they decrease the dependence of yield ratios of two systems on the isospin difference between two systems.

References

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HAO Huan-Feng, XING Yong-Zhong and LIU Jian-Ye. Influence of Isospin\, Dependence\, of\, Nucleon-Nucleon\, Cross\, Section\, and\, Momentum\, DependentInteraction on the Isoscaling in Intermediate Energy Collisions[J]. Chinese Physics C, 2007, 31(7): 651-654.

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Received: 2006-10-16
Revised: 2006-12-10

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沈阳化工大学材料科学与工程学院沈阳 110142

Influence of Isospin\, Dependence\, of\, Nucleon-Nucleon\, Cross\, Section\, and\, Momentum\, DependentInteraction on the Isoscaling in Intermediate Energy Collisions

Corresponding author: HAO Huan-Feng,

Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China2 The Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China3 Institute of Fundamental Physics, Tianshui Normal College, Gansu Tianshui 741000, China4 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2006-10-16

Accepted Date: 2006-12-10

Available Online: 2007-07-05

Abstract: The influences of the isospin dependent in-medium nucleon-nucleon cross section and the Momentum-Dependent Interaction(MDI) on the isotope scaling have been investigated within the Isospin dependent Quantum Molecular Dynamics Model(IQMD). The results show that both the isospin dependent in-medium nucleon-nucleon cross section and the momentum interaction reduce the isoscaling parameter α appreciably, which means they decrease the dependence of yield ratios of two systems on the isospin difference between two systems.

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Influence of Isospin\, Dependence\, of\, Nucleon-Nucleon\, Cross\, Section\, and\, Momentum\, DependentInteraction on the Isoscaling in Intermediate Energy Collisions

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