Hidden charm pentaquark and Lambda(1405) in the Lambda(0)(b) -> eta K-c(-) p(pi Sigma) reaction

doi:10.1016/j.physletb.2017.12.064

	Hidden charm pentaquark and Lambda(1405) in the Lambda(0)(b) -> eta K-c(-) p(pi Sigma) reaction
	Xie, Ju-Jun 1,2,3; Liang, Wei-Hong 2,3,4; Oset, Eulogio 1,2,3
刊名	PHYSICS LETTERS B
	2018-02-10
卷号	777 页码:447-452
ISSN号	0370-2693
DOI	10.1016/j.physletb.2017.12.064
英文摘要	We have performed a study of the Lambda(0)(b) -> eta K-c(-) p and Lambda(0)(b) -> eta(c)pi Sigma reactions based on the dominant Cabibbo favored weak decay mechanism. We show that the K- p produced only couples to Lambda* states, not Sigma* and that the pi Sigma state is only generated from final state interaction of (K) over barN and eta Lambda channels which are produced in a primary stage. This guarantees that the pi Sigma state is generated in isospin I=0 and we see that the invariant mass produces a clean signal for the Lambda(1405) of higher mass at 1420 MeV. We also study the eta(c)p final state interaction, which is driven by the excitation of a hidden charm resonance predicted before. We relate the strength of the different invariant mass distributions and find similar strengths that should be clearly visible in an ongoing LHCb experiment. In particular we predict that a clean peak should be seen for a hidden charm resonance that couples to the eta(c)p channel in the invariant eta(c)p mass distribution. (c) 2018 The Author(s). Published by Elsevier B.V.
资助项目	National Natural Science Foundation of China[11475227] ; National Natural Science Foundation of China[11565007] ; National Natural Science Foundation of China[11647309] ; National Natural Science Foundation of China[11735003] ; Youth Innovation Promotion Association CAS[2016367] ; Spanish Ministerio de Economia y Competitividad ; European FEDER[FIS2011-28853-C02-01] ; European FEDER[FIS2011-28853-C02-02] ; European FEDER[FIS2014-57026-REDT] ; European FEDER[FIS2014-51948-C2-1-P] ; European FEDER[FIS2014-51948-C2-2-P] ; Generalitat Valenciana[Prometeo II-2014/068] ; European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (acronym HadronPhysics3) under the Seventh Framework Programme of EU[283286]
WOS关键词	QUARK SPIN SYMMETRY ; CHIRAL DYNAMICS ; STATES ; DECAY ; PREDICTIONS ; CANDIDATES ; BARYON
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000423930700061
资助机构	National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Spanish Ministerio de Economia y Competitividad ; European FEDER ; Generalitat Valenciana ; European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (acronym HadronPhysics3) under the Seventh Framework Programme of EU
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/46279]
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, Gansu, Peoples R China 2.Univ Valencia, CSIC, Inst Invest Paterna, Dept Fis Teor,Ctr Mixto, Aptdo 22085, Valencia 46071, Spain 3.Univ Valencia, CSIC, Inst Invest Paterna, IFIC,Ctr Mixto, Aptdo 22085, Valencia 46071, Spain 4.Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China
推荐引用方式 GB/T 7714	Xie, Ju-Jun,Liang, Wei-Hong,Oset, Eulogio. Hidden charm pentaquark and Lambda(1405) in the Lambda(0)(b) -> eta K-c(-) p(pi Sigma) reaction[J]. PHYSICS LETTERS B,2018,777:447-452.
APA	Xie, Ju-Jun,Liang, Wei-Hong,&Oset, Eulogio.(2018).Hidden charm pentaquark and Lambda(1405) in the Lambda(0)(b) -> eta K-c(-) p(pi Sigma) reaction.PHYSICS LETTERS B,777,447-452.
MLA	Xie, Ju-Jun,et al."Hidden charm pentaquark and Lambda(1405) in the Lambda(0)(b) -> eta K-c(-) p(pi Sigma) reaction".PHYSICS LETTERS B 777(2018):447-452.