The density- and isospin-dependent -formation cross section and its decay width
文献类型：期刊论文
| 作者 | Li, QingFeng1,2; Li, ZhuXia3 |
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 62页码:972011 |
| ISSN号 | 1674-7348 |
| 关键词 | Delta-formation cross section decay width symmetry energy |
| DOI | 10.1007/s11433-018-9336-y |
| 英文摘要 | The energy-, density-, and isospin-dependent -formation cross section sigma*(N) and -decay width are calculated based on the relativistic BUU approach in which the effective mass splitting of nucleon and baryons in isospin-asymmetric matter is considered by the inclusion of the meson exchange in the effective Lagrangian density and the density-dependent coupling constants of Hofmann et al. The results show that the sigma*(N) is decreased (increased) moderately with increasing density with (without) the consideration of medium modifications on pion mass. Meanwhile, if the invariant mass of the system is not far from the pole mass, the -decay width is also weakly dependent on density. The mass splitting effect of differently charged nucleon and baryons on sigma*(N) is found to be more obvious than that of pion mesons but much weaker than the mass splitting in the hard production channel NN N. Further, the largest mass-splitting influence is seen in the (-)p (0) and (+)n (+) channels but not in the production of Delta(-) and Delta(++) isobars. |
| WOS关键词 | NUCLEON ; PION |
| 资助项目 | National Natural Science Foundation of China[11875125] ; National Natural Science Foundation of China[11847315] ; National Natural Science Foundation of China[11475262] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000459422500001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/64973]  |
| 专题 | 中国科学院近代物理研究所 |
| 作者单位 | 1.Huzhou Univ, Sch Sci, Huzhou 313000, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 3.China Inst Atom Energy, Beijing 102413, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, QingFeng,Li, ZhuXia. The density- and isospin-dependent -formation cross section and its decay width[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2019,62:972011. |
| APA | Li, QingFeng,&Li, ZhuXia.(2019).The density- and isospin-dependent -formation cross section and its decay width.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,62,972011. |
| MLA | Li, QingFeng,et al."The density- and isospin-dependent -formation cross section and its decay width".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 62(2019):972011. |
入库方式： OAI收割
来源：近代物理研究所
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