Nucleon pole contribution in the pp -> pp K+ K- reaction below the phi meson threshold

doi:10.1103/PhysRevC.90.034002

	Nucleon pole contribution in the pp -> pp K+ K- reaction below the phi meson threshold
	Lu, Qi-Fang 1; Xie, Ju-Jun 2,3,4,5,6; Li, De-Min 1
刊名	PHYSICAL REVIEW C
	2014-09-08
卷号	90
ISSN号	0556-2813
DOI	10.1103/PhysRevC.90.034002
文献子类	Article
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.
资助项目	National Natural Science Foundation of China[11105126]
WOS关键词	PROTON-PROTON COLLISIONS ; PI-PI ; RADIATIVE DECAY ; PAIR PRODUCTION ; LAMBDA(1405) ; EXCHANGE ; MODEL
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000341297200002
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/49959]
专题	中国科学院近代物理研究所
通讯作者	Lu, Qi-Fang
作者单位	1.Zhengzhou Univ, Dept Phys, Zhengzhou 450001, Henan, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Res Ctr Hadron, Lanzhou 730000, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, CSR Phys, Lanzhou 730000, Peoples R China 5.Lanzhou Univ, Lanzhou 730000, Peoples R China 6.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Lu, Qi-Fang,Xie, Ju-Jun,Li, De-Min. Nucleon pole contribution in the pp -> pp K+ K- reaction below the phi meson threshold[J]. PHYSICAL REVIEW C,2014,90.
APA	Lu, Qi-Fang,Xie, Ju-Jun,&Li, De-Min.(2014).Nucleon pole contribution in the pp -> pp K+ K- reaction below the phi meson threshold.PHYSICAL REVIEW C,90.
MLA	Lu, Qi-Fang,et al."Nucleon pole contribution in the pp -> pp K+ K- reaction below the phi meson threshold".PHYSICAL REVIEW C 90(2014).