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This study examines Gravitational Waves (GWs) in a two-component dark matter (DM) model with an \(SU(2)_L\) triplet scalar and a singlet Dirac fermion as DM candidates, with a singlet scalar mediating interactions between fermionic DM and Standard Model (SM) particles. The extended Higgs sector of our framework induces a first-order phase transition, generating GW relics. We consider theoretical, astrophysical, and collider constraints to ensure experimental consistency. Using peak-integrated sensitivity curves (PISCs), we identify model parameter space leading to detectable GWs in future space-based interferometers, such as LISA, etc., while providing viable DM candidates.

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Complementarity of a Two-Component Dark Matter Model with Gravitational Waves at LISA

  • 会议论文

  • 发表日期：

    2025年

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  • Pankaj Borah,
  • Pradipta Ghosh,
  • Abhijit Kumar Saha

摘要

This study examines Gravitational Waves (GWs) in a two-component dark matter (DM) model with an \(SU(2)_L\) triplet scalar and a singlet Dirac fermion as DM candidates, with a singlet scalar mediating interactions between fermionic DM and Standard Model (SM) particles. The extended Higgs sector of our framework induces a first-order phase transition, generating GW relics. We consider theoretical, astrophysical, and collider constraints to ensure experimental consistency. Using peak-integrated sensitivity curves (PISCs), we identify model parameter space leading to detectable GWs in future space-based interferometers, such as LISA, etc., while providing viable DM candidates.