Role of the N*(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions

doi:10.1103/PhysRevC.87.045210

	*Role of the N(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions**
	Xie, Ju-Jun 1,2; Liu, Bo-Chao 2,3
刊名	PHYSICAL REVIEW C
	2013-04-30
卷号	87
ISSN号	0556-2813
DOI	10.1103/PhysRevC.87.045210
文献子类	Article
英文摘要	We investigate the Lambda(1520) hadronic production in the pp -> pK(+)Lambda(1520) and pi(-) p -> K-0 Lambda(1520) reactions within the effective Lagrangian method. For the pi(-) p -> K-0 Lambda(1520) reaction, in addition to the "background" contributions from t-channel K* exchange, u-channel Sigma(+) exchange, and s-channel nucleon pole terms, we also consider the contribution from the nucleon resonance N(2080) (spin-parity J(P) = 3/2(-)), which has significant coupling to the K Lambda(1520) channel. We show that the inclusion of the N(2080) leads to a fairly good description of the low-energy experimental total cross section data of the pi(-) p -> K-0 Lambda(1520) reaction. From fitting to the experimental data, we get the N(2080)N pi coupling constant g(N(2080)N pi) = 0.14 +/- 0.04. By using this value, and with the assumption that the excitation of N*(2080) is due to the pi(0)-meson exchanges, we calculate the total and differential cross sections of the pp -> pK(+)Lambda(1520) reaction. We also demonstrate that the invariant mass distribution and the Dalitz plot provide direct information of the Lambda(1520) production, which can be tested by future experiments.
资助项目	National Natural Science Foundation of China[11105126] ; National Natural Science Foundation of China[10905046]
WOS关键词	PAIR PRODUCTION ; COLLISIONS ; PARTICLES ; THRESHOLD ; NUCLEON
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000318525900002
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/48359]
专题	中国科学院近代物理研究所
通讯作者	Xie, Ju-Jun
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Xi An Jiao Tong Univ, Dept Appl Phys, Xian 710049, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Xie, Ju-Jun,Liu, Bo-Chao. Role of the N*(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions[J]. PHYSICAL REVIEW C,2013,87.
APA	Xie, Ju-Jun,&Liu, Bo-Chao.(2013).Role of the N*(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions.PHYSICAL REVIEW C,87.
MLA	Xie, Ju-Jun,et al."Role of the N*(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions".PHYSICAL REVIEW C 87(2013).