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 | Shen, Pengnian; Huang, Fei; Zhang ZY(张宗烨) ; Zhang, Zongye; Dong, Yubing; Dong YB(董宇兵); Shen PN(沈彭年)
|
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2017 |
| 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 |
| 文献子类 | Article |
| 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. |
| 电子版国际标准刊号 | 1873-2445 |
| WOS关键词 | MESON PRODUCTION ; COLLISIONS ; DIBARYON ; DELTA ; RESONANCES ; STATES |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000402342500036 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284475]  |
| 专题 | 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Shen, Pengnian,Huang, Fei,Zhang ZY,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 | Shen, Pengnian.,Huang, Fei.,张宗烨.,Zhang, Zongye.,Dong, Yubing.,...&沈彭年.(2017).Decay width of the d*(2380) -> NN pi process in a chiral constituent quark model.PHYSICS LETTERS B,769,223-226. |
| MLA | Shen, Pengnian,et al."Decay width of the d*(2380) -> NN pi process in a chiral constituent quark model".PHYSICS LETTERS B 769(2017):223-226. |
入库方式： OAI收割
来源：高能物理研究所
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