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Low-lying scalars in an extended linear sigma model
Mukherjee, TK; Huang M(黄梅); Huang, M; Yan, QS
2012
发表期刊PHYSICAL REVIEW D
卷号86期号:11页码:114022
摘要We formulate an extended linear sigma model of a quarkonia nonet and a tetraquark nonet as well as a complex isosinglet (glueball) by virtue of chiral symmetry SUL(3) X SUR(3) and U-A(1) symmetry. In the linear realization formalism, we study the mass spectra and components of the low-lying scalars and pseudoscalars in this model. The mass matrices for physical states are obtained and the glueball candidates are examined. We find that the model can accommodate the mass spectra of low-lying states quite well. Our fits indicate that the most glueball-like scalar should be 2 GeV or higher while the glueball pseudoscalar is eta(1756). We also examine the parameter region where the lightest isoscalar f(0)(600) can be the glueball and quarkonia dominant but find such a parameter region may be confronted with the problem of the unbounded vacuum from below. DOI: 10.1103/PhysRevD.86.114022
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.86.114022
收录类别SCI
WOS记录号WOS:000312366800004
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224632
专题理论物理室
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Mukherjee, TK,Huang M,Huang, M,et al. Low-lying scalars in an extended linear sigma model[J]. PHYSICAL REVIEW D,2012,86(11):114022.
APA Mukherjee, TK,黄梅,Huang, M,&Yan, QS.(2012).Low-lying scalars in an extended linear sigma model.PHYSICAL REVIEW D,86(11),114022.
MLA Mukherjee, TK,et al."Low-lying scalars in an extended linear sigma model".PHYSICAL REVIEW D 86.11(2012):114022.
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