Constraining the in-medium nucleon-nucleon cross section from the width of nuclear giant dipole resonance
Constraining the in-medium nucleon-nucleon cross section from the width of nuclear giant dipole resonance
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从核巨偶极子共振宽度约束介质内核子-核子横截面
DOI:
10.1016/j.physletb.2020.135532
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发表时间:
2020-06
影响因子:
4.4
通讯作者:
Ma Yu-Gang
中科院分区:
文献类型:
--
作者:
Wang Rui;Zhang Zhen;Chen Lie-Wen;Ko Che Ming;Ma Yu-Gang
We develop a new lattice Hamiltonian method for solving the Boltzmann-Uehling-Uhlenbeck (BUU) equation. Adopting the stochastic approach to treat the collision term and using the GPU parallel computing to carry out the calculations allows for a rather high accuracy in evaluating the collision term, especially its Pauli blocking, leading thus to a new level of precision in solving the BUU equation. Applying this lattice BUU method to study the width of giant dipole resonance (GDR) in nuclei, where the accurate treatment of the collision term is crucial, we find that the obtained GDR width of 208 Pb shows a strong dependence on the in-medium nucleon-nucleon cross section σ NN⁎. A very large medium reduction of σ NN⁎ is needed to reproduce the measured value of the GDR width of 208 Pb at the Research Center for Nuclear Physics in Osaka, Japan.
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影响因子:
3.1
作者:
Hao Lin;P. Danielewicz
通讯作者:
Hao Lin;P. Danielewicz
影响因子:
3.1
作者:
Cai Xiang-zhou;Feng Jun;Shen Wen-qing;M. Yugang;W. Jian-song;Yb Wei
通讯作者:
Cai Xiang-zhou;Feng Jun;Shen Wen-qing;M. Yugang;W. Jian-song;Yb Wei
影响因子:
3.1
作者:
Qingfeng Li;Zhu-xia Li;E. Zhao
通讯作者:
Qingfeng Li;Zhu-xia Li;E. Zhao
影响因子:
2.8
作者:
Peng-Cheng Li;Yong-Jia Wang;Qing-Feng Li;Hong-Fei Zhang
通讯作者:
Hong-Fei Zhang
DOI:
10.1103/physrevc.49.566
发表时间:
1993-08
期刊:
Physical review. C, Nuclear physics
影响因子:
--
作者:
Li;Machleidt
通讯作者:
Li;Machleidt