Decay width of the d*(2380) -> nn pi process in a chiral constituent quark model
文献类型：期刊论文
| 作者 | Dong, Yubing1,2,3; Huang, Fei3; Shen, Pengnian1,2,4; Zhang, Zongye1,2,3 |
| 刊名 | Physics letters b
 |
| 出版日期 | 2017-06-10 |
| 卷号 | 769页码:223-226 |
| 关键词 | D* (2380) Chiral quark model Strong decay Single-pion decay |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2017.03.058 |
| 通讯作者 | Dong, yubing(dongyb@ihep.ac.cn) |
| 英文摘要 | The width of three-body single-pion decay process d* -> nn pi(0,+/-), is calculated by using the d* wave function obtained from our chiral su(3) constituent quark model calculation. the effect of the dynamical structure on the width of d* is taken into account in both the single aa channel and coupled delta delta + cc two-channel approximations. our numerical result shows that in the coupled-channel approximation, namely, the hidden-color configuration being considered, the obtained partial decay width of d* -> nn pi is about several hundred kev, while in the single delta delta channel it is just about 2 similar to 3 mev. we, therefore, conclude that the partial width in the single-pion decay process of d* is much smaller than the widths in its double-pion decay processes. our prediction may provide a criterion for judging different interpretations of the d* structure, as different pictures for the d* may result quite different partial decay width. (c) 2017 the authors. published by elsevier b.v. this is an open access article under the cc by license. |
| WOS关键词 | MESON PRODUCTION ; COLLISIONS ; DIBARYON ; DELTA ; RESONANCES ; STATES |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000402342500036 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177366 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Dong, Yubing |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, TPCSF, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 101408, Peoples R China 4.Guangxi Normal Univ, Coll Phys & Technol, Guilin 541004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Yubing,Huang, Fei,Shen, Pengnian,et al. Decay width of the d*(2380) -> nn pi process in a chiral constituent quark model[J]. Physics letters b,2017,769:223-226. |
| APA | Dong, Yubing,Huang, Fei,Shen, Pengnian,&Zhang, Zongye.(2017).Decay width of the d*(2380) -> nn pi process in a chiral constituent quark model.Physics letters b,769,223-226. |
| MLA | Dong, Yubing,et al."Decay width of the d*(2380) -> nn pi process in a chiral constituent quark model".Physics letters b 769(2017):223-226. |
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来源：高能物理研究所
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