264 citations · 1.2k across the 31 of their papers we have counts for
6 papers · 1 filter
Perturbative Unitarity Constraints on Gauge Portals
Sonia El Hedri, William Shepherd, Devin G. E. Walker
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…
Perturbative Unitarity Constraints on the NMSSM Higgs Sector
Kassahun Betre, Sonia El Hedri, Devin G. E. Walker
We place perturbative unitarity constraints on both the dimensionful and dimensionless parameters in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) Higgs Sector. These c…
Dark energy from the string axiverse
Marc Kamionkowski, Josef Pradler, Devin G. E. Walker
String theories suggest the existence of a plethora of axion-like fields with masses spread over a huge number of decades. Here we show that these ideas lend themselves to a model…
Deconstructed Transverse Mass Variables
Ahmed Ismail, Reinhard Schwienhorst, Joseph S. Virzi +1
Traditional searches for R-parity conserving natural supersymmetry (SUSY) require large transverse mass and missing energy cuts to separate the signal from large backgrounds. SUSY…
Single Top Production as a Probe of Heavy Resonances
Elizabeth Drueke, Joseph Nutter, Reinhard Schwienhorst +3
The single top quark final state provides sensitivity to new heavy resonances produced in proton-proton collisions at the Large Hadron Collider. Particularly, the single top plus q…
Perturbative Unitarity Constraints on a Supersymmetric Higgs Portal
Kassahun Betre, Sonia El Hedri, Devin G. E. Walker
We place perturbative unitarity constraints on both the dimensionful and dimensionless couplings in the Next-to-Minimal Supersymmetric Standard Model Higgs Sector. These constraint…