Triangle singularity enhancing isospin violation in Bˉs0→J/ψπ0f0(980)**Supported by National Natural Science Foundation of China (11565007, 11747307, 11647309, 11735003, 11475227), the Youth Innovation Promotion Association CAS (2016367). This work is also partly supported by the Spanish Ministerio de Economia y Com- petitividad and European FEDER funds (FIS2011-28853-C02-01, FIS2011-28853-C02-02, FIS2014-57026-REDT, FIS2014-51948-C2-1-P, FIS2014-51948-C2-2-P) and the Generalitat Valenciana in the program Prometeo (II-2014/068)
文献类型：期刊论文
| 作者 | Liang,Wei-Hong1,2; Sakai,S.2; Xie,Ju-Jun2,3; Oset,E.2 |
| 刊名 | Chinese Physics C
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 42 |
| 关键词 | triangle singularity light scalar meson isospin violation bottom meson decay 13.25.Hw 13.75.Lb 14.40.Be |
| ISSN号 | 1674-1137 |
| DOI | 10.1088/1674-1137/42/4/044101 |
| 英文摘要 | Abstract We perform calculations for the B ˉ s 0 → J / ψ π 0 f 0 ( 980 ) and B ˉ s 0 → J / ψ π 0 a 0 ( 980 ) reactions, showing that the first is isospin-suppressed while the second is isospin-allowed. The reaction proceeds via a triangle mechanism, with B ˉ s 0 → J / ψ K * K ˉ + c . c . , followed by the decay K* → Kπ and a further fusion of K K ˉ into the f 0 ( 980 ) or a0(980). We show that the mechanism develops a singularity around the π0 f0(980) or π0 a0(980) invariant mass of 1420 MeV, where the π0 f0 and π0 a0 decay modes are magnified and also the ratio of π0 f0 to π0 a0 production. Using experimental information for the B ˉ s 0 → J / ψ K * K ˉ + c . c . decay, we are able to obtain absolute values for the reactions studied which fall into the experimentally accessible range. The reactions proposed and the observables evaluated, when contrasted with actual experiments, should be very valuable to obtain information on the nature of the low lying scalar mesons. |
| 语种 | 英语 |
| WOS记录号 | IOP:1674-1137-42-4-044101 |
| 出版者 | Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd |
| 源URL | [http://119.78.100.186/handle/113462/24578]  |
| 专题 | 中国科学院近代物理研究所 |
| 作者单位 | 1.Department of Physics, Guangxi Normal University, Guilin 541004, China 2.Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia - CSIC, Institutos de Investigación de Paterna, Aptdo. 22085, 46071 Valencia, Spain 3.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China |
| 推荐引用方式 GB/T 7714 | Liang,Wei-Hong,Sakai,S.,Xie,Ju-Jun,et al. Triangle singularity enhancing isospin violation in Bˉs0→J/ψπ0f0(980)**Supported by National Natural Science Foundation of China (11565007, 11747307, 11647309, 11735003, 11475227), the Youth Innovation Promotion Association CAS (2016367). This work is also partly supported by the Spanish Ministerio de Economia y Com- petitividad and European FEDER funds (FIS2011-28853-C02-01, FIS2011-28853-C02-02, FIS2014-57026-REDT, FIS2014-51948-C2-1-P, FIS2014-51948-C2-2-P) and the Generalitat Valenciana in the program Prometeo (II-2014/068)[J]. Chinese Physics C,2018,42. |
| APA | Liang,Wei-Hong,Sakai,S.,Xie,Ju-Jun,&Oset,E..(2018).Triangle singularity enhancing isospin violation in Bˉs0→J/ψπ0f0(980)**Supported by National Natural Science Foundation of China (11565007, 11747307, 11647309, 11735003, 11475227), the Youth Innovation Promotion Association CAS (2016367). This work is also partly supported by the Spanish Ministerio de Economia y Com- petitividad and European FEDER funds (FIS2011-28853-C02-01, FIS2011-28853-C02-02, FIS2014-57026-REDT, FIS2014-51948-C2-1-P, FIS2014-51948-C2-2-P) and the Generalitat Valenciana in the program Prometeo (II-2014/068).Chinese Physics C,42. |
| MLA | Liang,Wei-Hong,et al."Triangle singularity enhancing isospin violation in Bˉs0→J/ψπ0f0(980)**Supported by National Natural Science Foundation of China (11565007, 11747307, 11647309, 11735003, 11475227), the Youth Innovation Promotion Association CAS (2016367). This work is also partly supported by the Spanish Ministerio de Economia y Com- petitividad and European FEDER funds (FIS2011-28853-C02-01, FIS2011-28853-C02-02, FIS2014-57026-REDT, FIS2014-51948-C2-1-P, FIS2014-51948-C2-2-P) and the Generalitat Valenciana in the program Prometeo (II-2014/068)".Chinese Physics C 42(2018). |
入库方式： OAI收割
来源：近代物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。