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Charged and neutral vector rho mesons in a magnetic field
Liu H(刘好); Yu L(余浪); Huang M(黄梅); Liu, H; Yu, L; Huang, M
2015
发表期刊PHYSICAL REVIEW D
卷号91期号:1页码:14017
通讯作者刘好 ; 余浪 ; 黄梅
文章类型Article
摘要The vector meson rho in the presence of an external magnetic field has been investigated in the framework of the Nambu-Jona-Lasinio model, in which mesons are constructed by the infinite sum of quark-loop chains by using random phase approximation. The quark loop of rho meson polarization function is calculated to the leading order of 1/N-c expansion by taking the quark propagator in Ritus form as well the Landau level representation. It is found that the constituent quark mass increases with magnetic field, the masses of the neutral vector meson rho(0) with spin component s(z) = 0, +/- 1, and the charged vector meson rho(+/-) with s(z) = 0 also increases with magnetic field. However, the mass square of the charged vector meson rho(+) (rho(-)) with s(z) = +1 (s(z) = -1) decreases linearly with magnetic field and drops to zero at the critical magnetic field eB(c) similar or equal to 0.2 GeV2, which indicates the possible condensation of a charged vector meson in the vacuum. The value of the critical magnetic field is the same by using the Ritus quark propagator as well the Landau level representation of the quark propagator, which is much lower than the value eB(c) similar or equal to 0.6 GeV2 predicted by a pointlike vector meson.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.91.014017
收录类别SCI ; CA
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000351950100002
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被引频次:22[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/311005/228384
专题理论物理室
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GB/T 7714
Liu H,Yu L,Huang M,et al. Charged and neutral vector rho mesons in a magnetic field[J]. PHYSICAL REVIEW D,2015,91(1):14017.
APA 刘好,余浪,黄梅,Liu, H,Yu, L,&Huang, M.(2015).Charged and neutral vector rho mesons in a magnetic field.PHYSICAL REVIEW D,91(1),14017.
MLA 刘好,et al."Charged and neutral vector rho mesons in a magnetic field".PHYSICAL REVIEW D 91.1(2015):14017.
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