Constraining the in-medium nucleon-nucleon cross section from the width of nuclear giant dipole resonance
文献类型：期刊论文
| 作者 | Wang, R; Zhang, Z; Chen, LW; Ko, CM; Ma, YG |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2020 |
| 卷号 | 807页码:- |
| 关键词 | MICROSCOPIC CALCULATION DYNAMICS DISAPPEARANCE DEPENDENCE EQUATION FLOW COLLISIONS TRANSPORT STATE |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2020.135532 |
| 文献子类 | 期刊论文 |
| 英文摘要 | 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 Pb-208 shows a strong dependence on the in-medium nucleon-nucleon cross section sigma*(NN). A very large medium reduction of sigma*(NN) is needed to reproduce the measured value of the GDR width of Pb-208 at the Research Center for Nuclear Physics in Osaka, Japan. (C) 2020 The Authors. Published by Elsevier B.V. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32758]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA 2.Fudan Univ, Inst Modern Phys, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200433, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 4.Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China 5.Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China 6.Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China 7.Texas A&M Univ, Cyclotron Inst, College Stn, TX 77843 USA |
| 推荐引用方式 GB/T 7714 | Wang, R,Zhang, Z,Chen, LW,et al. Constraining the in-medium nucleon-nucleon cross section from the width of nuclear giant dipole resonance[J]. PHYSICS LETTERS B,2020,807:-. |
| APA | Wang, R,Zhang, Z,Chen, LW,Ko, CM,&Ma, YG.(2020).Constraining the in-medium nucleon-nucleon cross section from the width of nuclear giant dipole resonance.PHYSICS LETTERS B,807,-. |
| MLA | Wang, R,et al."Constraining the in-medium nucleon-nucleon cross section from the width of nuclear giant dipole resonance".PHYSICS LETTERS B 807(2020):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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