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Triangle singularity as the origin of X0(2900) and X1(2900) observed in B+->D+D-K+

文献类型：期刊论文

作者Liu, Xiao-Hai5; Yan, Mao-Jun6; Ke, Hong-Wei5; Li, Gang1; Xie, Ju-Jun2,3,4
刊名EUROPEAN PHYSICAL JOURNAL C
出版日期2020-12-01
卷号80期号:12页码:5
ISSN号1434-6044
DOI10.1140/epjc/s10052-020-08762-6
通讯作者Xie, Ju-Jun(xiejujun@impcas.ac.cn)
英文摘要The LHCb collaboration recently reported the observation of a narrow peak in the D-K+ invariant mass distributions from the B+-> D+D-K+ decay. The peak is parameterized in terms of two resonances X0(2900) and X1(2900) with the quark contents csud, and their spin-parity quantum numbers are 0+ and 1-, respectively. We investigate the rescattering processes which may contribute to the B+-> D+D-K+ decays. It is shown that the D-K+ rescattering via the chi c1K+D- loop and the D10K0 rescattering via the DsJ+D10K0 loop can simulate the X0(2900) and X1(2900) with consistent quantum numbers. Such phenomena are due to the analytical property of the scattering amplitudes with the triangle singularities located to the vicinity of the physical boundary.
资助项目National Natural Science Foundation of China (NSFC)[11975165] ; National Natural Science Foundation of China (NSFC)[11735003] ; National Natural Science Foundation of China (NSFC)[11961141012] ; National Natural Science Foundation of China (NSFC)[12075167] ; National Natural Science Foundation of China (NSFC)[12075288] ; National Natural Science Foundation of China (NSFC)[12075133] ; National Natural Science Foundation of China (NSFC)[11835015] ; National Natural Science Foundation of China (NSFC)[11675091] ; Higher Educational Youth Innovation Science and Technology Program Shandong Province[2020KJJ004] ; Youth Innovation Promotion Association CAS[2016367]
WOS研究方向Physics
语种英语
WOS记录号WOS:000603034700001
出版者SPRINGER
资助机构National Natural Science Foundation of China (NSFC) ; Higher Educational Youth Innovation Science and Technology Program Shandong Province ; Youth Innovation Promotion Association CAS
源URL[http://119.78.100.186/handle/113462/138181]  
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.Qufu Normal Univ, Coll Phys & Engn, Qufu 273165, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
3.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 101408, Peoples R China
4.Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 450001, Henan, Peoples R China
5.Tianjin Univ, Sch Sci, Dept Phys, Tianjin 300350, Peoples R China
6.Beihang Univ, Sch Phys, Beijing 100191, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Xiao-Hai,Yan, Mao-Jun,Ke, Hong-Wei,et al. Triangle singularity as the origin of X0(2900) and X1(2900) observed in B+->D+D-K+[J]. EUROPEAN PHYSICAL JOURNAL C,2020,80(12):5.
APA Liu, Xiao-Hai,Yan, Mao-Jun,Ke, Hong-Wei,Li, Gang,&Xie, Ju-Jun.(2020).Triangle singularity as the origin of X0(2900) and X1(2900) observed in B+->D+D-K+.EUROPEAN PHYSICAL JOURNAL C,80(12),5.
MLA Liu, Xiao-Hai,et al."Triangle singularity as the origin of X0(2900) and X1(2900) observed in B+->D+D-K+".EUROPEAN PHYSICAL JOURNAL C 80.12(2020):5.

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来源：近代物理研究所

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