5 papers
Limitations of Freeze-in WIMP Dark Matter from Supercooled Phase Transitions
Seyed Yaser Ayazi, Mojtaba Hosseini
We revisit the possibility of producing Weakly Interacting Massive Particle (WIMP) dark matter via a freeze-in mechanism triggered by a supercooled first-order phase transition (FO…
Gravitational wave signatures of first-order phase transition in two-component dark matter model
Seyed Yaser Ayazi, Mojtaba Hosseini, Rouzbeh Rouzbehi
Here, we consider a classically scale-invariant extension of the Standard Model (SM) with two-component dark matter (DM) candidates, including a Dirac spinor and a scalar DM. We pr…
Vector dark matter and LHC constraints, including a 95 GeV light Higgs boson
Seyed Yaser Ayazi, Mojtaba Hosseini, Saeid Paktinat Mehdiabadi +1
We study LHC searches for an extension of the Standard Model (SM) by exploiting an additional Abelian gauge symmetry and a complex scalar Higgs portal. As the scalar is ch…
Gravitational wave in a filtered vector dark matter model
Mojtaba Hosseini, Seyed Yaser Ayazi, Ahmad Mohamadnejad
We consider a first order phase transition (FOPT) for a Vector Dark Matter (VDM) in the early universe in which its mass may partially arise from such mechanism in the hidden secto…
Gravitational wave effects and phenomenology of a two-component dark matter model
Mojtaba Hosseini, Seyed Yaser Ayazi, Ahmad Mohamadnejad
We study an extension of the Standard Model (SM) which could have two candidates for dark matter (DM) including a Dirac fermion and a vector dark matter (VDM) under a new ga…