Chromopolarizabilities of fully heavy baryons

doi:10.1103/PhysRevD.107.034020

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	Chromopolarizabilities of fully heavy baryons
	Dong, Xiang-Kun ; Guo, Feng-Kun ; Nefediev, Alexey 2,3; Castella, Jaume Tarrus 4,5
刊名	PHYSICAL REVIEW D
	2023
卷号	107 期号:3 页码:34020
关键词	3-BODY PROBLEM QUARKONIUM EXISTENCE EQUATION SYSTEMS RUNDEC NRQCD BODY
ISSN号	2470-0010
DOI	10.1103/PhysRevD.107.034020
英文摘要	We compute the chromopolarizabilities of the fully heavy baryons 52QQQ0 (Q; Q0 1/4 b, c) in the framework of potential nonrelativistic quantum chromodynamics. At leading order, the fully heavy hadrons are considered as ground chromo-Coulombic bound states. We find that the chromopolarizability beta 52 of a fully heavy baryon QQQ is 2.6 times the chromopolarizability beta psi of the quarkonium Q over bar Q with the same heavy quark flavor Q. This result is accurate up to the correction of the order 0.3 for Q 1/4 b and provides an order-of-magnitude estimate for Q 1/4 c. We discuss the dependence of the ratio beta 52=beta psi on the heavy quark mass mQ and the strong coupling constant alpha s as well as on the ratio of the masses mQ0=mQ, in the case not all quarks in the baryon are identical. Since the chromopolarizability of heavy hadrons defines the strength of their interaction at low energies mediated by soft gluons, which at long range hadronize into pairs of pions and kaons, our findings argue in favor of the existence of near-threshold states composed of pairs of fully heavy baryons.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27937]
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.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.Jozef Stefan Inst, Jamova 39, Ljubljana 1000, Slovenia 4.Inst Super Tecn, Ctr Phys & Engn Adv Mat, CeFEMA, Ave Rovisco Pais 1, P-1049001 Lisbon, Portugal 5.Indiana Univ, Dept Phys, Bloomington, IN 47401 USA 6.Indiana Univ, Ctr Explorat Energy & Matter, Bloomington, IN 47408 USA
推荐引用方式 GB/T 7714	Dong, Xiang-Kun,Guo, Feng-Kun,Nefediev, Alexey,et al. Chromopolarizabilities of fully heavy baryons[J]. PHYSICAL REVIEW D,2023,107(3):34020.
APA	Dong, Xiang-Kun,Guo, Feng-Kun,Nefediev, Alexey,&Castella, Jaume Tarrus.(2023).Chromopolarizabilities of fully heavy baryons.PHYSICAL REVIEW D,107(3),34020.
MLA	Dong, Xiang-Kun,et al."Chromopolarizabilities of fully heavy baryons".PHYSICAL REVIEW D 107.3(2023):34020.