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Pseudoscalar glueball in a chiral Lagrangian model with instanton effect
He S(何松); Huang M(黄梅); He, S; Huang, M; Yan, QS
2010
发表期刊PHYSICAL REVIEW D
卷号81期号:1页码:14003
通讯作者[He, Song ; Huang, Mei] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; [Huang, Mei] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100039, Peoples R China ; [Yan, Qi-Shu] Univ Toronto, Dept Phys, Toronto, ON, Canada
摘要We study the pseudoscalar glueball ground state in a chiral effective Lagrangian model proposed by 't Hooft, motivated by taking into account the instanton effects, which can describe not only the chiral symmetry breaking, but also the solution of U-A(1). We study the parameter space allowed by constraints from vacuum conditions and unitary bounds. By considering two scenarios in the 0(++) sector, we find that parameter space which can accommodate the 0(-+) sector is sensitive to the conditions in 0(++) sector. From our analysis, it is found that three eta states, i.e. eta(1295), eta(1405), eta(1475), can be the pseudoscalar glueball ground state if we assume that the lightest 0(++) glueball ground state has a mass 1710 ( or 1500) MeV. While there will be no 0(++) glueball candidate ground state found in experiments if we assume that the lightest 0(++) glueball ground state has a mass 660 MeV. We also point out the determined instanton density (i.e. the parameter k(t))is consistent with those determined from other methods, e. g. instanton liquid approximation and lattice simulations.
文章类型Article
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.81.014003
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语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000274002800014
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被引频次:10[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/311005/240414
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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GB/T 7714
He S,Huang M,He, S,et al. Pseudoscalar glueball in a chiral Lagrangian model with instanton effect[J]. PHYSICAL REVIEW D,2010,81(1):14003.
APA 何松,黄梅,He, S,Huang, M,&Yan, QS.(2010).Pseudoscalar glueball in a chiral Lagrangian model with instanton effect.PHYSICAL REVIEW D,81(1),14003.
MLA 何松,et al."Pseudoscalar glueball in a chiral Lagrangian model with instanton effect".PHYSICAL REVIEW D 81.1(2010):14003.
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