Near-barrier quasi-elastic cross sections and barrier distribution of <SUP>32</SUP>S+<SUP>90,96</SUP>Zr

WU Xiu-Kun; LIN Cheng-Jian; YANG Feng; LIU Zu-Hua; ZHANG Huan-Qiao; ZHANG Chun-Lei; ZHOU Ping

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2006, Vol. 30> Issue(2) : 105-107

Near-barrier quasi-elastic cross sections and barrier distribution of ³²S+^90,96Zr

China Institute of Atomic Energy, Beijing 102413, China

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Abstract：
Quasi-elastic cross sections have been measured for ³²S+^90,96Zr with high accuracy near the Coulomb barrier at backward angles and the barrier distributions are extracted from them. We find that barrier distribution of ³²S+⁹⁶Zr is flat and extends to low energies. The sub-barrier fusion cross sections are strongly enhanced because of such barrier distribution. Compared with the reaction of ³²S+⁹⁰Zr, ³²S+⁹⁶Zr has stronger neutron transfers up to the six-neutron pickup, which is due to the positive Q values of neutron transfers in the latter. This indicates that the neutron transfer may play a role in the enhancement of sub-barrier fusion for ³²S+⁹⁶Zr.

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WU Xiu-Kun, LIN Cheng-Jian, YANG Feng, LIU Zu-Hua, ZHANG Huan-Qiao, ZHANG Chun-Lei and ZHOU Ping. Near-barrier quasi-elastic cross sections and barrier distribution of ³²S+^90,96Zr[J]. Chinese Physics C, 2006, 30(2): 105-107.

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Received: 2005-06-13
Revised: 2005-09-08

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沈阳化工大学材料科学与工程学院沈阳 110142

Near-barrier quasi-elastic cross sections and barrier distribution of ³²S+^90,96Zr

Corresponding author: WU Xiu-Kun,

China Institute of Atomic Energy, Beijing 102413, China

Received Date: 2005-06-13
Accepted Date: 2005-09-08
Available Online: 2006-02-05

Abstract: Quasi-elastic cross sections have been measured for ³²S+^90,96Zr with high accuracy near the Coulomb barrier at backward angles and the barrier distributions are extracted from them. We find that barrier distribution of ³²S+⁹⁶Zr is flat and extends to low energies. The sub-barrier fusion cross sections are strongly enhanced because of such barrier distribution. Compared with the reaction of ³²S+⁹⁰Zr, ³²S+⁹⁶Zr has stronger neutron transfers up to the six-neutron pickup, which is due to the positive Q values of neutron transfers in the latter. This indicates that the neutron transfer may play a role in the enhancement of sub-barrier fusion for ³²S+⁹⁶Zr.

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