A full thermal-resummation computation shows that plasmon and plasmino corrections leave the TeV-scale singlet scalar annihilation cross section essentially unchanged, reconfirming existing relic density constraints.
Probing Higgs-portal dark matter with vector-boson fusion
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
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 the Higgs resonance, where the Higgs-boson mass is close to the threshold for dark-matter production and a running-width prescription has to be employed for the Higgs-boson propagator. Limits for the Higgs-portal coupling as a function of the dark-matter mass are derived from the CMS search for invisible Higgs-boson decays in vector-boson fusion at 13 TeV. Furthermore, we perform projections for the 14 TeV HL-LHC and the 27 TeV HE-LHC taking into account a realistic estimate of the systematic uncertainties. The respective upper limits on the invisible branching ratio of the Higgs boson reach a level of 2 % and constrain perturbative Higgs-portal couplings up to dark-matter masses of about 110 GeV.
fields
hep-ph 1years
2025 1verdicts
ACCEPT 1representative citing papers
citing papers explorer
-
Computing singlet scalar freeze-out with plasmon and plasmino states
A full thermal-resummation computation shows that plasmon and plasmino corrections leave the TeV-scale singlet scalar annihilation cross section essentially unchanged, reconfirming existing relic density constraints.