Triangle singularity enhancing isospin violation in (B)over-bar(s)(0)-> J/psi pi(0)f(0)(980)
文献类型：期刊论文
| 作者 | Liang, Wei-Hong1,2,3; Sakai, S.2,3; Xie, Ju-Jun2,3,4; Oset, E.2,3 |
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 42页码:9 |
| 关键词 | triangle singularity light scalar meson isospin violation bottom meson decay |
| ISSN号 | 1674-1137 |
| DOI | 10.1088/1674-1137/42/4/044101 |
| 英文摘要 | We perform calculations for the (B) over bar (0)(s)-> J/psi pi(0)f(0)(980) and (B) over bar (0)(s)-> J/psi pi(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) over bar (0)(s)-> J/psi K*(K) over bar +c.c., followed by the decay K*-> K pi and a further fusion of K (K) over bar into the f(0)(980) or a(0)(980). We show that the mechanism develops a singularity around the pi(0)f(0)(980) or pi(0)a(0)(980) invariant mass of 1420 MeV, where the pi(0)f(0) and pi(0)a(0) decay modes are magnified and also the ratio of pi(0)f(0) to pi(0)a(0) production. Using experimental information for the (B) over bar (0)(s)-> J/psi K*(K) over bar +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. |
| WOS关键词 | F(0)(980) ; A(0)(980) ; THRESHOLD ; MESONS ; DECAYS |
| 资助项目 | National Natural Science Foundation of China[11565007] ; National Natural Science Foundation of China[11747307] ; National Natural Science Foundation of China[11647309] ; National Natural Science Foundation of China[11735003] ; National Natural Science Foundation of China[11475227] ; Youth Innovation Promotion Association CAS[2016367] ; Spanish Ministerio de Economia y Competitividad ; European FEDER funds[FIS2011-28853-C02-01] ; European FEDER funds[FIS2011-28853-C02-02] ; European FEDER funds[FIS2014-57026-REDT] ; European FEDER funds[FIS2014-51948-C2-1-P] ; European FEDER funds[FIS2014-51948-C2-2-P] ; Generalitat Valenciana in the program Prometeo[II-2014/068] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000430884300013 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Spanish Ministerio de Economia y Competitividad ; European FEDER funds ; Generalitat Valenciana in the program Prometeo |
| 源URL | [http://119.78.100.186/handle/113462/47721]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Liang, Wei-Hong |
| 作者单位 | 1.Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China 2.Inst Invest Paterna, Ctr Mixto Univ Valencia CSIC, Dept Fis Teor, Aptdo 22085, Valencia 46071, Spain 3.Inst Invest Paterna, Ctr Mixto Univ Valencia CSIC, IFIC, Aptdo 22085, Valencia 46071, Spain 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R 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 (B)over-bar(s)(0)-> J/psi pi(0)f(0)(980)[J]. CHINESE PHYSICS C,2018,42:9. |
| APA | Liang, Wei-Hong,Sakai, S.,Xie, Ju-Jun,&Oset, E..(2018).Triangle singularity enhancing isospin violation in (B)over-bar(s)(0)-> J/psi pi(0)f(0)(980).CHINESE PHYSICS C,42,9. |
| MLA | Liang, Wei-Hong,et al."Triangle singularity enhancing isospin violation in (B)over-bar(s)(0)-> J/psi pi(0)f(0)(980)".CHINESE PHYSICS C 42(2018):9. |
入库方式： OAI收割
来源：近代物理研究所
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