scholarly journals Screening the Higgs portal

2021 ◽  
Vol 104 (1) ◽  
Author(s):  
Philippe Brax ◽  
Clare Burrage
Keyword(s):  
Higgs Portal

scholarly journals Dark Matter production from relativistic bubble walls

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Aleksandr Azatov ◽  
Miguel Vanvlasselaer ◽  
Wen Yin
Keyword(s):  
Phase Transition ◽  
Dark Matter ◽  
Electroweak Phase Transition ◽  
First Order ◽  
Matter Production ◽  
First Order Phase Transition ◽  
Relic Abundance ◽  
Higgs Portal ◽  
First Order Phase ◽  
Gravitational Background

Abstract In this paper we present a novel mechanism for producing the observed Dark Matter (DM) relic abundance during the First Order Phase Transition (FOPT) in the early universe. We show that the bubble expansion with ultra-relativistic velocities can lead to the abundance of DM particles with masses much larger than the scale of the transition. We study this non-thermal production mechanism in the context of a generic phase transition and the electroweak phase transition. The application of the mechanism to the Higgs portal DM as well as the signal in the Stochastic Gravitational Background are discussed.

scholarly journals Study of electroweak vacuum stability from extended Higgs portal of dark matter and neutrinos

2018 ◽  
Vol 97 (7) ◽  
Author(s):  
Purusottam Ghosh ◽  
Abhijit Kumar Saha ◽  
Arunansu Sil
Keyword(s):  
Dark Matter ◽  
Vacuum Stability ◽  
Higgs Portal

scholarly journals A global view of the off-shell Higgs portal

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Maximilian Ruhdorfer ◽  
Ennio Salvioni ◽  
Andreas Weiler
Keyword(s):  
Dark Matter ◽  
Standard Model ◽  
Vector Boson ◽  
Effective Interaction ◽  
Goldstone Boson ◽  
High Energy ◽  
Beyond The Standard Model ◽  
The Standard Model ◽  
Higgs Portal ◽  
First Time

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 Matter to the Standard Model. We focus on Dark Matter pair production through an off-shell Higgs boson, which is analyzed in the vector boson fusion channel. A variety of future high-energy lepton colliders as well as hadron colliders are considered, including CLIC, a muon collider, the High-Luminosity and High-Energy versions of the LHC, and FCC-hh. Implications on the parameter space of pNGB Dark Matter are discussed. In addition, we give improved and extended results for the collider reach on the marginal Higgs portal, under the assumption that the new scalars escape the detector, as motivated by a variety of beyond the Standard Model scenarios.

scholarly journals Implications of LHC searches for Higgs-portal dark matter

2012 ◽  
Vol 709 (1-2) ◽  
pp. 65-69 ◽  
Author(s):  
Abdelhak Djouadi ◽  
Oleg Lebedev ◽  
Yann Mambrini ◽  
Jérémie Quevillon
Keyword(s):  
Dark Matter ◽  
Higgs Portal

scholarly journals Stealth dark matter: Dark scalar baryons through the Higgs portal

2015 ◽  
Vol 92 (7) ◽  
Author(s):  
T. Appelquist ◽  
R. C. Brower ◽  
M. I. Buchoff ◽  
G. T. Fleming ◽  
X.-Y. Jin ◽  
...  
Keyword(s):  
Dark Matter ◽  
Higgs Portal
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