Nucleon pole contribution in the pp -> pp K+ K- reaction below the phi meson threshold
文献类型：期刊论文
| 作者 | Lu, QF ; Xie, JJ ; Li, DM |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2014 |
| 卷号 | 90期号:3页码:34002 |
| ISSN号 | 0556-2813 |
| 关键词 | PROTON-PROTON COLLISIONS PI-PI RADIATIVE DECAY PAIR PRODUCTION LAMBDA(1405) EXCHANGE MODEL |
| 通讯作者 | Lu, QF (reprint author), Zhengzhou Univ, Dept Phys, Zhengzhou 450001, Henan, Peoples R China. |
| 英文摘要 | Nucleon pole contribution in the pp -> ppK(+) K- reaction below the threshold of the production of the phi meson is studied within the effective Lagrangian approach. It is assumed that the K- p final state originates from the decay of the hyperons Lambda(1115) and Lambda(1405). In addition to the pp final state interaction (FSI) parametrized using the Jost function, we have also considered theK(+) K- FSI with the techniques of the chiral unitary approach, where the scalar mesons f(0)(980) and a(0)(980) were dynamically generated. Hence, the contributions from scalar mesons f(0)(980) and a(0)(980) occur through the K+ K- FSI. It is shown that the available experimental data are well reproduced, especially the total cross sections and the invariant mass distributions of pp and K+ K-. Furthermore, different forms of the couplings (pseudoscalar and pseudovector) for the pi NN interaction and different strengths for the proton-proton FSI are also investigated. It is found that the contributions from hyperons Lambda(1115) and Lambda(1405) are different between these two kinds of couplings. On the other hand, the effects of the proton-proton FSI can be adjusted by the cutoff parameters used in the form factors. |
| 学科主题 | Physics |
| 资助信息 | National Natural Science Foundation of China [11105126]; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry |
| 收录类别 | SCI |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevC.90.034002 |
| 语种 | 英语 |
| WOS记录号 | WOS:000341297200002 |
| 公开日期 | 2015-06-03 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15655]  |
| 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 | Lu, QF,Xie, JJ,Li, DM. Nucleon pole contribution in the pp -> pp K+ K- reaction below the phi meson threshold[J]. PHYSICAL REVIEW C,2014,90(3):34002. |
| APA | Lu, QF,Xie, JJ,&Li, DM.(2014).Nucleon pole contribution in the pp -> pp K+ K- reaction below the phi meson threshold.PHYSICAL REVIEW C,90(3),34002. |
| MLA | Lu, QF,et al."Nucleon pole contribution in the pp -> pp K+ K- reaction below the phi meson threshold".PHYSICAL REVIEW C 90.3(2014):34002. |
入库方式： OAI收割
来源：理论物理研究所
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