782 citations · 8.1k across the 115 of their papers we have counts for
7 papers · 1 filter
Tricking Landau-Yang: How to obtain the diphoton excess from a vector resonance
Mikael Chala, Michael Duerr, Felix Kahlhoefer +1
We show that contrary to naive expectations the recently observed diphoton excess can be explained by a vector resonance, which decays to a photon and a light scalar , followed…
Implications of unitarity and gauge invariance for simplified dark matter models
Felix Kahlhoefer, Kai Schmidt-Hoberg, Thomas Schwetz +1
We show that simplified models used to describe the interactions of dark matter with Standard Model particles do not in general respect gauge invariance and that perturbative unita…
Dark Matter Benchmark Models for Early LHC Run-2 Searches: Report of the ATLAS/CMS Dark Matter Forum
Daniel Abercrombie, Nural Akchurin, Ece Akilli +136
This document is the final report of the ATLAS-CMS Dark Matter Forum, a forum organized by the ATLAS and CMS collaborations with the participation of experts on theories of Dark Ma…
WIMP Dark Matter and Unitarity-Conserving Inflation via a Gauge Singlet Scalar
Felix Kahlhoefer, John McDonald
A gauge singlet scalar with non-minimal coupling to gravity can drive inflation and later freeze out to become cold dark matter. We explore this idea by revisiting inflation in the…
A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
Sergey Alekhin, Wolfgang Altmannshofer, Takehiko Asaka +82
This paper describes the physics case for a new fixed target facility at CERN SPS. The SHiP (Search for Hidden Particles) experiment is intended to hunt for new physics in the larg…
On the interpretation of dark matter self-interactions in Abell 3827
Felix Kahlhoefer, Kai Schmidt-Hoberg, Janis Kummer +1
Self-interactions of dark matter particles can potentially lead to an observable separation between the dark matter halo and the stars of a galaxy moving through a region of large…
Constraining Dark Sectors with Monojets and Dijets
Mikael Chala, Felix Kahlhoefer, Matthew McCullough +2
We consider dark sector particles (DSPs) that obtain sizeable interactions with Standard Model fermions from a new mediator. While these particles can avoid observation in direct d…