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CHEN, YQ; KUANG, YP; CHEN, YQ , TSING HUA UNIV,INST MODERN PHYS,BEIJING 100084,PEOPLES R CHINA.
IMPROVED QCD-MOTIVATED HEAVY-QUARK POTENTIALS WITH EXPLICIT DELTA(MS)BAR DEPENDENCE
Source PublicationPHYSICAL REVIEW D
KeywordLattice Gauge-theory Quantum Chromodynamics Spin Splittings Parameter Systems States
AbstractWe propose two models for a heavy-quark potential with possible natural QCD interpretations. The potentials approach the two-loop perturbative QCD formula at short distance and a linear confining potential at large distance, and their predicted ccBAR and bbBAR spectra all fit the data very well for LAMBDA(MSBAR) in the range 100-500 MeV, where MSBAR denotes the modified minimal subtraction scheme. Furthermore, the potentials are described directly in coordinate space with explicit LAMBDA(MSBAR) dependence so that they are convenient for practical calculations. Some of their phenomenological predictions are given, especially, in the picture regarding a confining potential as a scalar exchange. The predicted masses of psi (1 P-1(1)) and gamma(1 P-1(1)) are higher than the center-of-gravity values of the 1 3P(J) states by 0.9-1.8 MeV and 0.4-0.7 MeV, respectively, for LAMBDA(MSBAR) in the range 100-200 MeV.
1992
ISSN0556-2821
Volume46Issue:3Pages:1165-1171
Subject AreaPhysics
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12141
Collection理论物理所科研产出_SCI期刊论文
Corresponding AuthorCHEN, YQ , TSING HUA UNIV,INST MODERN PHYS,BEIJING 100084,PEOPLES R CHINA.
Recommended Citation
GB/T 7714
CHEN, YQ,KUANG, YP,CHEN, YQ , TSING HUA UNIV,INST MODERN PHYS,BEIJING 100084,PEOPLES R CHINA.. IMPROVED QCD-MOTIVATED HEAVY-QUARK POTENTIALS WITH EXPLICIT DELTA(MS)BAR DEPENDENCE[J]. PHYSICAL REVIEW D,1992,46(3):1165-1171.
APA CHEN, YQ,KUANG, YP,&CHEN, YQ , TSING HUA UNIV,INST MODERN PHYS,BEIJING 100084,PEOPLES R CHINA..(1992).IMPROVED QCD-MOTIVATED HEAVY-QUARK POTENTIALS WITH EXPLICIT DELTA(MS)BAR DEPENDENCE.PHYSICAL REVIEW D,46(3),1165-1171.
MLA CHEN, YQ,et al."IMPROVED QCD-MOTIVATED HEAVY-QUARK POTENTIALS WITH EXPLICIT DELTA(MS)BAR DEPENDENCE".PHYSICAL REVIEW D 46.3(1992):1165-1171.
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