Michael A. Schmidt

activity

20242026

collaborators

Showing hep-phShow all

3 papers · 1 filter

hep-ph2026

Monojet and direct detection constraints on real scalar dark matter: EFT and a simple UV completion

Arnab Roy, Michael A. Schmidt, German Valencia

We consider constraints that can be placed on certain invisible scalar particles through monojet studies at the LHC and compare them with those from direct detection experiments wh…

hep-ph2025

Z and Higgs boson decays with doubly-charged scalars at one-loop: current constraints, future sensitivities, and application to lepton-triality models

Gabriela Lichtenstein, Michael A. Schmidt, German Valencia +1

We analyse the $Z$ and Higgs boson decays $Z \to ℓ^{+} ℓ^{-}$ ( $ℓ = e, I^¼, I ¨ $ ), $H \to I^^{3} I^^{3}$ and $H \to Z I^^{3}$ that are induced at one-loop level in models with a doubly-charged i…

hep-ph2024

Scalar dark matter explanation of the excess in the Belle II $B^{+} \to K^{+} +$ invisible measurement

Xiao-Gang He, Xiao-Dong Ma, Michael A. Schmidt +2

Recently Belle II reported the first measurement of $B^{+} \to K^{+} + invisible (inv)$ , which is $2.7 I ¨ $ above the standard model (SM) prediction. If confirmed, this calls for new…

Monojet and direct detection constraints on real scalar dark matter: EFT and a simple UV completion

Z and Higgs boson decays with doubly-charged scalars at one-loop: current constraints, future sensitivities, and application to lepton-triality models

Scalar dark matter explanation of the excess in the Belle II B+→K++ invisible measurement

Scalar dark matter explanation of the excess in the Belle II $B^{+} \to K^{+} +$ invisible measurement