The LHC constraints on Higgs-portal WIMPs are studied. Scalar, vector and anti-symmetric
tensor fields are considered. They are assumed to be heavier than a half of the Higgs boson …

Dark matter that was once in thermal equilibrium with the Standard Model is generally
prohibited from obtaining all of its mass from the electroweak phase transition. This implies a …

With the assumptions that dark matter consists of an electroweak triplet and that the gauge
couplings unify at a high scale, we identify robust phenomenological trends of possible …

The weakly interacting massive particle (WIMP) paradigm is one of the most compelling
scenarios for particle dark matter (DM). We show in this paper that a high energy muon …

A bstract We constrain the Higgs-portal model employing the vector-boson fusion channel at
the LHC. In particular, we include the phenomenologically interesting parameter region near …

A bstract We explore an extension of the Standard Model by an additional U (1) gauge
group and a complex scalar Higgs portal. As the scalar is charged under this gauge factor …

I discuss how the Large Hadron Collider era should broaden our view of particle physics
research, and apply this thinking to the case of Hidden Worlds. I focus on one of the simplest …

A bstract We present a study of the Very Degenerate Higgsino Dark Matter (DM), whose
mass splitting between the lightest neutral and charged components is\(\mathcal {O}(1)\) …

We study for the first time the collider reach on the derivative Higgs portal, the leading
effective interaction that couples a pseudo Nambu-Goldstone boson (pNGB) scalar Dark …

A bstract The QCD-like dark sector with GeV-scale dark hadrons has the potential to
generate new signatures at the Large Hadron Collider (LHC). In this paper, we consider a …