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《Common Origin of $3.55$ keV X-ray line and Gauge Coupling Unification with Left-Right Dark Matter.》

  • 来源专题：中国科学院紫金山天文台科技信息监测服务
  • 编译者： zhoubz
  • 发布时间：2016-04-11

  • We present a minimal left-right dark matter framework that can simultaneously explain the recently observed 3.55 keV X-ray line from several galaxy clusters and gauge coupling unification at high energy scale. Adopting a minimal dark matter strategy, we consider both left and right handed triplet fermionic dark matter candidates which are accidentally stable due to their high $SU(2)$ dimension forbidding their decay into standard model particles. A scalar bitriplet field is incorporated whose first role is to induce a tiny mass splitting between the left and right handed triplet dark matter candidates by the tiny vacuum expectation value of its neutral component such that the heavier dark matter can decay into the lighter one and a photon with energy 3.55 keV. The other role this bitriplet field at TeV scale plays is to assist in achieving gauge coupling unification at a high energy within a a non-supersymmetric $SO(10)$ model while keeping the left-right gauge symmetry around the TeV corner. Apart from solving the neutrino mass problem and giving verifiable new contributions to neutrinoless double beta decay and charged lepton flavor violation, the model with TeV scale gauge bosons can also give rise to interesting collider signatures like diboson excess, dilepton plus two jets excess reported recently in the large hadron collider data

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    • 编译者：武春亮
    • 发布时间：2024-07-01
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  • 《Gamma-ray triangles: a possible signature of asymmetric dark matter in indirect searches》
    • 来源专题：中国科学院紫金山天文台科技信息监测服务
    • 编译者：zhoubz
    • 发布时间：2016-04-11
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