Special Role of Neutron-Halo Nucleus on the Momentum Dissipation in Heavy Ion Collisions

XING Yong-Zhong; LIU Jian-Ye; ZUO Wei; LI Xi-Guo

Chinese Physics C> 2005, Vol. 29> Issue(10) : 978-982

Special Role of Neutron-Halo Nucleus on the Momentum Dissipation in Heavy Ion Collisions

天水师范学院数理信息学院基础物理研究所

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The special role of neutron-halo nucleus ¹⁹B on the momentum dissipation was investigated by using isospin dependent quantum molecular dynamics. In order to compare and protrude the special role of neutron-halo-nucleus ¹⁹B,the momentum dissipation induced by a same mass stable nucleus ¹⁹F was investigated under the same incident channel condition.It is found that the weak bound neutron-halo structure of ¹⁹B weakens the momentum dissipation process compared to those induced by stable nucleus ¹⁹F in the lower energy region. However the nuclear stopping of colliding system with the neutron-halo nucleus ¹⁹B decreases gradually with the increasing beam energy. For all of mass targets and impact parameters the neutron-halo nucleus ¹⁹B weakens the momentum dassipation process.

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XING Yong-Zhong, LIU Jian-Ye, ZUO Wei and LI Xi-Guo. Special Role of Neutron-Halo Nucleus on the Momentum Dissipation in Heavy Ion Collisions[J]. Chinese Physics C, 2005, 29(10): 978-982.

XING Yong-Zhong, LIU Jian-Ye, ZUO Wei and LI Xi-Guo. Special Role of Neutron-Halo Nucleus on the Momentum Dissipation in Heavy Ion Collisions[J]. Chinese Physics C, 2005, 29(10): 978-982. shu

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Received: 2005-01-21
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Special Role of Neutron-Halo Nucleus on the Momentum Dissipation in Heavy Ion Collisions

Corresponding author: XING Yong-Zhong,

天水师范学院数理信息学院基础物理研究所

Received Date: 2005-01-21

Accepted Date: 1900-01-01

Available Online: 2005-10-05

Abstract: The special role of neutron-halo nucleus ¹⁹B on the momentum dissipation was investigated by using isospin dependent quantum molecular dynamics. In order to compare and protrude the special role of neutron-halo-nucleus ¹⁹B,the momentum dissipation induced by a same mass stable nucleus ¹⁹F was investigated under the same incident channel condition.It is found that the weak bound neutron-halo structure of ¹⁹B weakens the momentum dissipation process compared to those induced by stable nucleus ¹⁹F in the lower energy region. However the nuclear stopping of colliding system with the neutron-halo nucleus ¹⁹B decreases gradually with the increasing beam energy. For all of mass targets and impact parameters the neutron-halo nucleus ¹⁹B weakens the momentum dassipation process.

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Special Role of Neutron-Halo Nucleus on the Momentum Dissipation in Heavy Ion Collisions

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