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

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	*Role of the N(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions**
	Xie, JJ ; Liu, BC
刊名	PHYSICAL REVIEW C
	2013
卷号	87 期号:4 页码:45210
关键词	PAIR PRODUCTION COLLISIONS PARTICLES THRESHOLD NUCLEON
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	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.
学科主题	Physics
收录类别	SCI
资助信息	National Natural Science Foundation of China [11105126, 10905046]; CAS Theoretical Physics Center for Science Facilities
原文出处	http://dx.doi.org/10.1103/PhysRevC.87.045210
语种	英语
WOS记录号	WOS:000318525900002
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15377]
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. Role of the N*(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions[J]. PHYSICAL REVIEW C,2013,87(4):45210.
APA	Xie, JJ,&Liu, BC.(2013).Role of the N*(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions.PHYSICAL REVIEW C,87(4),45210.
MLA	Xie, JJ,et al."Role of the N*(2080) in pp -> pK(+)Lambda(1520) and pi(-)p -> K-0 Lambda(1520) reactions".PHYSICAL REVIEW C 87.4(2013):45210.