The scalar f(0)(500), f(0)(980), and a(0)(980) resonances and vector mesons in the single Cabibbo-suppressed decays Lambda(c) -> pK(+)K(-) and p pi(+)pi(-)

doi:10.1140/epjc/s10052-020-8347-2

	The scalar f(0)(500), f(0)(980), and a(0)(980) resonances and vector mesons in the single Cabibbo-suppressed decays Lambda(c) -> pK(+)K(-) and p pi(+)pi(-)
	Wang, Zhe 2; Wang, Yan-Yan 3; Wang, En 2; Li, De-Min 2; Xie, Ju-Jun 1,2,4
刊名	EUROPEAN PHYSICAL JOURNAL C
	2020-09-11
卷号	80 期号:9 页码:10
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-020-8347-2
通讯作者	Wang, En(wangen@zzu.edu.cn)
英文摘要	In the chiral unitary approach, we have studied the single Cabibbo-suppressed decays Lambda(c) -> pK(+)K(-) and Lambda(c) ->. p pi(+)pi(-) by taking into account the s-wave meson-meson interaction as well as the contributions from the intermediate vectors phi and rho(0). Our theoretical results for the ratios of the branching fractions of Lambda(c) -> p (K) over bar *0 and Lambda(c) -> p omega with respect to the one of Lambda(c) -> p phi are in agreement with the experimental data. Within the picture that the scalar resonances f(0)(500), f(0)(980), and a(0)(980) are dynamically generated from the pseudoscalar-pseudoscalar interactions in s-wave, we have calculated the K+K- and pi(+)pi(-) invariant mass distributions respectively for the decays Lambda(c) -> pK(+)K(-) and Lambda(c) -> p pi(+)pi(-). One can find a broad bump structure for the f(0)(500) and a narrow peak for the f(0)(980) in the pi(+)pi(-) invariant mass distribution of the decay Lambda(c) -> p pi(+)pi(-). For the K+K- invariant mass distribution, in addition to the narrow peak for the phi meson, there is an enhancement structure near the K+K- threshold mainly due to the contribution from the f(0)(980). Both the pi(+)pi(-) and K+K- invariant mass distributions are compatible with the BESIII measurement. We encourage our experimental colleagues to measure these two decays, which would be helpful to understand the nature of the f(0)(500), f(0)(980), and a(0)(980).
资助项目	National Natural Science Foundation of China[11505158] ; National Natural Science Foundation of China[11947089] ; National Natural Science Foundation of China[11735003] ; National Natural Science Foundation of China[11961141012] ; Key Research Projects of Henan Higher Education Institutions[20A140027] ; Academic Improvement Project of Zhengzhou University ; Youth Innovation Promotion Association CAS[2016367]
WOS关键词	WAVE ; SIGMA
WOS研究方向	Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000569042100001
资助机构	National Natural Science Foundation of China ; Key Research Projects of Henan Higher Education Institutions ; Academic Improvement Project of Zhengzhou University ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/139598]
专题	中国科学院近代物理研究所
通讯作者	Wang, En
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 450001, Henan, Peoples R China 3.Zhengzhou Univ Aeronaut, Sch Mat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China 4.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 101408, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhe,Wang, Yan-Yan,Wang, En,et al. The scalar f(0)(500), f(0)(980), and a(0)(980) resonances and vector mesons in the single Cabibbo-suppressed decays Lambda(c) -> pK(+)K(-) and p pi(+)pi(-)[J]. EUROPEAN PHYSICAL JOURNAL C,2020,80(9):10.
APA	Wang, Zhe,Wang, Yan-Yan,Wang, En,Li, De-Min,&Xie, Ju-Jun.(2020).The scalar f(0)(500), f(0)(980), and a(0)(980) resonances and vector mesons in the single Cabibbo-suppressed decays Lambda(c) -> pK(+)K(-) and p pi(+)pi(-).EUROPEAN PHYSICAL JOURNAL C,80(9),10.
MLA	Wang, Zhe,et al."The scalar f(0)(500), f(0)(980), and a(0)(980) resonances and vector mesons in the single Cabibbo-suppressed decays Lambda(c) -> pK(+)K(-) and p pi(+)pi(-)".EUROPEAN PHYSICAL JOURNAL C 80.9(2020):10.