Knowledge Management System of Institute of Theoretical Physics, CAS
Sakai, Shuntaro; Oset, Eulogio1,2; Guo, Feng-Kun
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| Triangle singularity in the B--> K- pi X-0 (3872) reaction and sensitivity to the X(3872) mass | |
| Source Publication | PHYSICAL REVIEW D
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| Language | 英语 |
| Keyword | ISOSPIN ANALYSIS BREAKING |
| Abstract | We 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 | |
| ISSN | 2470-0010 |
| Volume | 101Issue:5Pages:54030 |
| Cooperation Status | 国际 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| MOST Discipline Catalogue | Astronomy & Astrophysics ; Physics, Particles & Fields |
| DOI | 10.1103/PhysRevD.101.054030 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/27124 |
| Collection | SCI期刊论文 |
| Affiliation | 1.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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