5 papers
A Window onto New Invisible Particles via Semi-Visible Higgs Decays
Sally Dawson, Arnab Roy, German Valencia
Searches for new physics continue at the LHC in several forms, including new-particle searches, precision measurements of SM couplings, and searches for signals of new invisible pa…
Semi-visible higgs decay as a probe for new invisible particles
Sally Dawson, Arnab Roy, German Valencia
We discuss the HL-LHC sensitivity to probe new invisible particles including scalars and fermions using semi-visible Higgs decays in the $pp\to ZH, Z\to jj\, (\ell^+\ell^-), ~H\to…
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…
High- LHC constraints on SMEFT operators affecting rare kaon and hyperon decays
Arnab Roy, German Valencia
We consider the constraints on new physics affecting rare kaon and hyperon decay as parametrized by a low energy effective theory that can be obtained from high- observabl…
decays within the standard model and beyond
Arnab Roy, Jusak Tandean, German Valencia
Motivated by the LHCb measurement of the hyperon decay mode and prospects for improvement, we revisit the estimates for the rate and muon forward-backward asymm…