Regge-like relation and a universal description of heavy-light systems
文献类型：期刊论文
| 作者 | Lv QF(吕齐放); Dong, YB ; Liu, X; Lu, QF; Matsuki, T; Chen, K; Dong YB(董宇兵)
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| 刊名 | EUROPEAN PHYSICAL JOURNAL C
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| 出版日期 | 2018 |
| 卷号 | 78期号:1页码:20 |
| ISSN号 | 1434-6044 |
| DOI | 10.1140/epjc/s10052-017-5512-3 |
| 文献子类 | Article |
| 英文摘要 | Using the Regge-like formula (M - m(Q))(2) = pi sigma L between hadron mass M and angular momentum L with a heavy quark mass mQ and a string tension sigma, we analyze all the heavy-light systems, i.e., D/D-s/B/B-s mesons and charmed and bottom baryons. Numerical plots are obtained for all the heavy-light mesons of experimental data whose slope becomes nearly equal to 1/2 of that for light hadrons. Assuming that charmed and bottom baryons consist of one heavy quark and one light cluster of two light quarks (diquark), we apply the formula to all the heavy-light baryons including the recently discovered Omega(c) and find that these baryons experimentally measured satisfy the above formula. We predict the average mass values of B, B-s, Lambda(b), Lambda(c), Xi(c), and Omega(c) with L = 2 to be 6.01, 6.13, 6.15, 3.05, 3.07, and 3.34 GeV, respectively. Our results on baryons suggest that these baryons can be safely regarded as heavy quark-light cluster configuration. We also find a universal description for all the heavy-light mesons as well as baryons, i.e., one unique line is enough to describe both of charmed and bottom heavy-light systems. Our results suggest that instead of mass itself, gluon flux energy is essential to obtain a linear trajectory. Our method gives a straight line for B-c although the curved parent Regge trajectory was suggested before. |
| 电子版国际标准刊号 | 1434-6052 |
| WOS关键词 | QUARK-MODEL ; BARYONS ; MESONS ; DEGENERACY |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000422661200002 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285537]  |
| 专题 | 高能物理研究所_理论物理室 高能物理研究所_多学科研究中心 |
| 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 | Lv QF,Dong, YB,Liu, X,et al. Regge-like relation and a universal description of heavy-light systems[J]. EUROPEAN PHYSICAL JOURNAL C,2018,78(1):20. |
| APA | 吕齐放.,Dong, YB.,Liu, X.,Lu, QF.,Matsuki, T.,...&董宇兵.(2018).Regge-like relation and a universal description of heavy-light systems.EUROPEAN PHYSICAL JOURNAL C,78(1),20. |
| MLA | 吕齐放,et al."Regge-like relation and a universal description of heavy-light systems".EUROPEAN PHYSICAL JOURNAL C 78.1(2018):20. |
入库方式： OAI收割
来源：高能物理研究所
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