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Evaluation of the spectra of baryons containing two heavy quarks in a bag model
He, DH; Qian, K; Ding, YB; Li, XQ; Shen, PN; Shen PN(沈彭年)
2004
发表期刊PHYSICAL REVIEW D
卷号70期号:9页码:94004
通讯作者Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China ; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China ; China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China
摘要In this work, we evaluate the mass spectra of baryons which consist of two heavy quarks and one light quark in the MIT bag model. The two heavy quarks constitute a heavy scalar or axial-vector diquark. Concretely, we calculate the spectra of |q(QQ('))>(1/2) and |q(QQ('))>(3/2) where Q and Q(') stand for b and/or c quarks. Especially, for |q(bc)>(1/2) there can be a mixing between |q(bc)(0)>(1/2) and |q(bc)(1)>(1/2) where the subscripts 0 and 1 refer to the spin state of the diquark (bc), the mixing is not calculable in the framework of quantum mechanics as the potential model is employed, but can be evaluated by the quantum field theory. Our numerical results indicate that the mixing is sizable.
文章类型Article
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.70.094004
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000225440600040
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240857
专题理论物理室
作者单位中国科学院高能物理研究所
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He, DH,Qian, K,Ding, YB,et al. Evaluation of the spectra of baryons containing two heavy quarks in a bag model[J]. PHYSICAL REVIEW D,2004,70(9):94004.
APA He, DH,Qian, K,Ding, YB,Li, XQ,Shen, PN,&沈彭年.(2004).Evaluation of the spectra of baryons containing two heavy quarks in a bag model.PHYSICAL REVIEW D,70(9),94004.
MLA He, DH,et al."Evaluation of the spectra of baryons containing two heavy quarks in a bag model".PHYSICAL REVIEW D 70.9(2004):94004.
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