Regge-like relation and a universal description of heavy-light systems

doi:10.1140/epjc/s10052-017-5512-3

	Regge-like relation and a universal description of heavy-light systems
	Chen, Kan 1,2; Dong, Yubing 3,4,5; Liu, Xiang 1,2; Lu, Qi-Fang 3,6; Matsuki, Takayuki 7,8
刊名	EUROPEAN PHYSICAL JOURNAL C
	2018-01-12
卷号	78 期号:1 页码:20
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-017-5512-3
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.
资助项目	National Natural Science Foundation of China[11705056] ; National Natural Science Foundation of China[11475192] ; DFG ; NSFC[CRC 110] ; China Postdoctoral Science Foundation[2016M601133]
WOS关键词	QUARK-MODEL ; BARYONS ; MESONS ; DEGENERACY
WOS研究方向	Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000422661200002
资助机构	National Natural Science Foundation of China ; DFG ; NSFC ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/47118]
专题	中国科学院近代物理研究所
通讯作者	Chen, Kan
作者单位	1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ, Inst Modern Phys CAS, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 4.Chinese Acad Sci, TPCSF, Beijing, Peoples R China 5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 101408, Peoples R China 6.Hunan Normal Univ, SICQEA, Changsha 410081, Hunan, Peoples R China 7.Tokyo Kasei Univ, Itabashi Ku, 1-18-1 Kaga, Tokyo 1738602, Japan 8.RIKEN, Nishina Ctr, Theoret Res Div, Wako, Saitama 3510198, Japan
推荐引用方式 GB/T 7714	Chen, Kan,Dong, Yubing,Liu, Xiang,et al. Regge-like relation and a universal description of heavy-light systems[J]. EUROPEAN PHYSICAL JOURNAL C,2018,78(1):20.
APA	Chen, Kan,Dong, Yubing,Liu, Xiang,Lu, Qi-Fang,&Matsuki, Takayuki.(2018).Regge-like relation and a universal description of heavy-light systems.EUROPEAN PHYSICAL JOURNAL C,78(1),20.
MLA	Chen, Kan,et al."Regge-like relation and a universal description of heavy-light systems".EUROPEAN PHYSICAL JOURNAL C 78.1(2018):20.