Coupling constant for Lambda(1405)(K)over-bar N
文献类型：期刊论文
| 作者 | Xie, JJ ; Liu, BC ; An, CS |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2013 |
| 卷号 | 88期号:1页码:15203 |
| 关键词 | SU(3) SYMMETRY RESONANCES SCATTERING NUCLEON LAMBDA STATE MODEL ETA PP |
| ISSN号 | 0556-2813 |
| 通讯作者 | Xie, JJ (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China. |
| 英文摘要 | The value of the Lambda(1405)(K) over bar N coupling constant g(Lambda(1405)(K) over bar) (N) is obtained by fitting it to the experimental data on the total cross sections of the K- p -> pi(0)Sigma(0) reaction. On the basis of an effective Lagrangian approach and isobar model, we show that the value vertical bar g(Lambda(1405)(K) over bar) (N)vertical bar = 1.51 +/- 0.10 could be extracted from the available experimental data by assuming that the s-channel Lambda(1405) resonance plays a dominant role, whereas, the background contributions from the s-channel Lambda(1115), t-channel K*, and u-channel nucleon pole processes are small and can be neglected. However, the u-channel nucleon pole diagram may also give an important contribution in the present calculations. After the background contributions are taken into account, the above value of g(Lambda(1405)(K) over bar) (N) is reduced to vertical bar g(Lambda(1405)(K) over bar) (N)vertical bar = 0.77 +/- 0.07, which is not supported by the previous calculations and the recent CLAS measurements. The theoretical calculations on differential cross sections are also presented, which can be checked by future experiments. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [11105126, 10905046, 11205164] |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevC.88.015203 |
| 语种 | 英语 |
| WOS记录号 | WOS:000321999100006 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15323]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Xie, JJ,Liu, BC,An, CS. Coupling constant for Lambda(1405)(K)over-bar N[J]. PHYSICAL REVIEW C,2013,88(1):15203. |
| APA | Xie, JJ,Liu, BC,&An, CS.(2013).Coupling constant for Lambda(1405)(K)over-bar N.PHYSICAL REVIEW C,88(1),15203. |
| MLA | Xie, JJ,et al."Coupling constant for Lambda(1405)(K)over-bar N".PHYSICAL REVIEW C 88.1(2013):15203. |
入库方式： OAI收割
来源：理论物理研究所
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