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Interpretation of the Galactic Center excess and electroweak phase transition in the NMSSM
Bi, XJ; Bian, LG; Huang, WC; Shu, J; Yin, PF; Bian, LG (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2015
发表期刊PHYSICAL REVIEW D
卷号92期号:2页码:23507
文章类型Article
摘要The gamma-ray excess observed by the Fermi-LAT in the Galactic Center can be interpreted by the dark matter annihilation to b (b) over bar via a light pseudoscalar in the next-to-minimal supersymmetric standard model (NMSSM). It is interesting to note that the corresponding singlet scalar is useful to achieve a strongly first-order phase transition required by the electroweak baryogenesis. In this paper, we investigate the possibility that the NMSSM model can simultaneously accommodate these two issues. The phase transition strength can be characterized by the vacua energy gap at zero temperature and be sufficiently enhanced by the tree-level effect in the NMSSM. We find that the annihilation of singlino/Higgsino dark matter (DM) particles occurring close to the light pseudoscalar resonance is favored by the Galactic Center excess and the observed DM relic density, and some resulting regions in the parameter space with a small kappa/lambda. and a negative A. can simultaneously account for a successful strongly first-order electroweak phase transition.
学科领域Astronomy & Astrophysics ; Physics
资助者National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000]
DOIhttp://dx.doi.org/10.1103/PhysRevD.92.023507
关键词[WOS]SUPERSYMMETRIC STANDARD MODEL ; TAN BETA ; BARYOGENESIS ; ABUNDANCES ; UNIVERSE ; PROGRAM ; SINGLET
收录类别SCI
语种英语
资助者National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; National Natural Science Foundation of China [11475189, 11475191, 11135009, 11175251] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000] ; 973 Program of China [2013CB837000]
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20931
专题理论物理所SCI论文
通讯作者Bian, LG (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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GB/T 7714
Bi, XJ,Bian, LG,Huang, WC,et al. Interpretation of the Galactic Center excess and electroweak phase transition in the NMSSM[J]. PHYSICAL REVIEW D,2015,92(2):23507.
APA Bi, XJ,Bian, LG,Huang, WC,Shu, J,Yin, PF,&Bian, LG .(2015).Interpretation of the Galactic Center excess and electroweak phase transition in the NMSSM.PHYSICAL REVIEW D,92(2),23507.
MLA Bi, XJ,et al."Interpretation of the Galactic Center excess and electroweak phase transition in the NMSSM".PHYSICAL REVIEW D 92.2(2015):23507.
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