Interpretations of the new LHCb P-c(4337)(+) pentaquark state
文献类型：期刊论文
| 作者 | Yan, Mao-Jun; Peng, Fang-Zheng; Sanchez, Mario Sanchez2; Valderrama, Manuel Pavon1 |
| 刊名 | EUROPEAN PHYSICAL JOURNAL C
 |
| 出版日期 | 2022 |
| 卷号 | 82期号:6页码:574 |
| ISSN号 | 1434-6044 |
| 关键词 | EFFECTIVE-FIELD THEORY RENORMALIZATION-GROUP |
| DOI | 10.1140/epjc/s10052-022-10522-7 |
| 英文摘要 | Recently the LHCb Collaboration has observed a new pentaquark state, the P-c(4337)(+). Owing to its proximity to the chi(c0)(1S) p, (D) over bar* Lambda(c), (D) over bar Sigma(c) and (D) over bar Sigma(*)(c) thresholds, this new pentaquark might very well be a meson-baryon bound state. However its spin and parity have not been determined yet and none of the previous possibilities can be ruled out.We briefly explore a few of these options and the consequences they entail in the present manuscript: (i) the P-c(4337)(+) might be a chi(c0)(1S) p bound state, (ii) the P-c(4312)(+) and P-c(4337)(+) might be (D) over bar* Lambda(c) and (D) over bar Sigma(c) states close to threshold, respectively, where the Breit-Wigner mass might not correspond to the location of the poles, (iii) the locations of the P-c(4312)(+) and P-c(4337)(+) might be explained in terms of the (D) over bar* Lambda(c)- (D) over bar Sigma(c) and (D) over bar* Lambda(c)- (D) over bar Sigma(*)(c) coupled channel dynamics. This last option, though not the most probable explanation, is still potentially compatible with the double peak solution of the P-cs (4459)(0) and with what we know of the P-c(4312)(+). As a byproduct of the previous explorations, we conjecture the existence of a series of anticharmed meson - antitriplet charmed baryon bound states and calculate their masses. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27779]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Beihang Univ, Sch Phys, Beijing 100191, Peoples R China 3.Univ Bordeaux, CNRS, IN2P3, Ctr Etud Nucl, F-33175 Gradignan, France |
| 推荐引用方式 GB/T 7714 | Yan, Mao-Jun,Peng, Fang-Zheng,Sanchez, Mario Sanchez,et al. Interpretations of the new LHCb P-c(4337)(+) pentaquark state[J]. EUROPEAN PHYSICAL JOURNAL C,2022,82(6):574. |
| APA | Yan, Mao-Jun,Peng, Fang-Zheng,Sanchez, Mario Sanchez,&Valderrama, Manuel Pavon.(2022).Interpretations of the new LHCb P-c(4337)(+) pentaquark state.EUROPEAN PHYSICAL JOURNAL C,82(6),574. |
| MLA | Yan, Mao-Jun,et al."Interpretations of the new LHCb P-c(4337)(+) pentaquark state".EUROPEAN PHYSICAL JOURNAL C 82.6(2022):574. |
入库方式： OAI收割
来源：理论物理研究所
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