Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision

ZHANG FengShou; CHEN LieWen; MING ZhaoYu; ZHU ZhiYuan

Chinese Physics C> 2000, Vol. 24> Issue(4) : 320-325

Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision

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 CCAST World Laboratory, Beijing 100080, China4 Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences,Shanghai 201800, China

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Abstract：
Within the framework of an IQMD model, the stopping rate Erat, linear momen-tum transfer LMT, charged-particle multiplicities N., light charged-particle multiplicities N1c, neutron multiplicities N., and Zbound are investigated as a function of the impact param- eter b in reactions of ¹¹²Sn+¹¹²Sn and ¹²⁴Sn +¹²⁴Sn at 40 and 100 MeV/u. The results indi-cate that N_n is isopsin-dependent as a function of b at both 40 and 100 MeV/u, and Z_bound is also isopsin-dependent at 40 MeV/u but not at 100 MeV/u. Meanwhile, we also discuss how to determine impact parameter of an event at lower and higher incident energies.

References

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ZHANG FengShou, CHEN LieWen, MING ZhaoYu and ZHU ZhiYuan. Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision[J]. Chinese Physics C, 2000, 24(4): 320-325.

ZHANG FengShou, CHEN LieWen, MING ZhaoYu and ZHU ZhiYuan. Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision[J]. Chinese Physics C, 2000, 24(4): 320-325. shu

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Received: 1999-02-01
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

Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision

Corresponding author: ZHANG FengShou,

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 CCAST World Laboratory, Beijing 100080, China4 Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences,Shanghai 201800, China

Received Date: 1999-02-01

Accepted Date: 1900-01-01

Available Online: 2000-04-05

Abstract: Within the framework of an IQMD model, the stopping rate Erat, linear momen-tum transfer LMT, charged-particle multiplicities N., light charged-particle multiplicities N1c, neutron multiplicities N., and Zbound are investigated as a function of the impact param- eter b in reactions of ¹¹²Sn+¹¹²Sn and ¹²⁴Sn +¹²⁴Sn at 40 and 100 MeV/u. The results indi-cate that N_n is isopsin-dependent as a function of b at both 40 and 100 MeV/u, and Z_bound is also isopsin-dependent at 40 MeV/u but not at 100 MeV/u. Meanwhile, we also discuss how to determine impact parameter of an event at lower and higher incident energies.

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Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision

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