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IMPROVED QCD-MOTIVATED HEAVY-QUARK POTENTIALS WITH EXPLICIT DELTA(MS)BAR DEPENDENCE
CHEN, YQ; KUANG, YP; CHEN, YQ , TSING HUA UNIV,INST MODERN PHYS,BEIJING 100084,PEOPLES R CHINA.
1992
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号46期号:3页码:1165-1171
摘要We 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.
部门归属ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; WORLD LAB,CHINA CTR ADV SCI & TECHNOL,BEIJING 100080,PEOPLES R CHINA
关键词Lattice Gauge-theory Quantum Chromodynamics Spin Splittings Parameter Systems States
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12141
专题理论物理所SCI论文
通讯作者CHEN, YQ , TSING HUA UNIV,INST MODERN PHYS,BEIJING 100084,PEOPLES R CHINA.
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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[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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