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Sakai, Shuntaro; Oset, Eulogio1,2; Guo, Feng-Kun
Triangle singularity in the B--> K- pi X-0 (3872) reaction and sensitivity to the X(3872) mass
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordISOSPIN ANALYSIS BREAKING
AbstractWe have done a study of the B--> K-pi X-0(3872) reaction by means of a triangle mechanism via the chain of reactions: B--> K-D*(0);(D) over bar*(0); D*(0)-> pi D-0(0); D-0(D) over bar*(0)-> X(3872). We show that this mechanism generates a triangle singularity in the pi X-0(3872) invariant mass for a very narrow window of the X(3872) mass, around the present measured values, and show that the peak positions and the shape of the mass distributions arc sensitive to the X(3872) mass, such that a measurement of the reaction can serve to improve on the present values of this mass. In particular, we point out that the X(3872) mass relative to the D-0(D) over bar*(0) threshold may be extracted from the asymmetry of the pi X-0 line shape.
2020
ISSN2470-0010
Volume101Issue:5Pages:54030
Cooperation Status国际
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.101.054030
Indexed BySCIE
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27124
CollectionSCI期刊论文
Affiliation1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Zhong Guan Cun East St 55, Beijing 100190, Peoples R China
2.Ctr Mixto Univ Valencia, CSIC Inst Invest Paterna, Dept Fis Teor, Aptdo 22085, Valencia 46071, Spain
3.Ctr Mixto Univ Valencia, CSIC Inst Invest Paterna, IFIC, Aptdo 22085, Valencia 46071, Spain
4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Sakai, Shuntaro,Oset, Eulogio,Guo, Feng-Kun. Triangle singularity in the B--> K- pi X-0 (3872) reaction and sensitivity to the X(3872) mass[J]. PHYSICAL REVIEW D,2020,101(5):54030.
APA Sakai, Shuntaro,Oset, Eulogio,&Guo, Feng-Kun.(2020).Triangle singularity in the B--> K- pi X-0 (3872) reaction and sensitivity to the X(3872) mass.PHYSICAL REVIEW D,101(5),54030.
MLA Sakai, Shuntaro,et al."Triangle singularity in the B--> K- pi X-0 (3872) reaction and sensitivity to the X(3872) mass".PHYSICAL REVIEW D 101.5(2020):54030.
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