97 citations · 310 across the 7 of their papers we have counts for
6 papers · 1 filter
Electroweak and Higgs Boson Internal Bremsstrahlung: General considerations for Majorana dark matter annihilation and application to MSSM neutralinos
Torsten Bringmann, Francesca Calore, Ahmad Galea +1
It is well known that the annihilation of Majorana dark matter into fermions is helicity suppressed. Here, we point out that the underlying mechanism is a subtle combination of two…
Novel Spectral Features in MeV Gamma Rays from Dark Matter
Torsten Bringmann, Ahmad Galea, Andrzej Hryczuk +1
Astrophysical searches for gamma rays are one of the main strategies to probe the annihilation or decay of dark matter particles. We present a new class of distinct sub-GeV spectra…
Leading QCD Corrections for Indirect Dark Matter Searches: a Fresh Look
Torsten Bringmann, Ahmad J. Galea, Parampreet Walia
The annihilation of non-relativistic dark matter particles at tree level can be strongly enhanced by the radiation of an additional gauge boson. This is particularly true for the h…
Searching for Dark Matter at the LHC with a Mono-Z
Nicole F. Bell, James B. Dent, Ahmad J. Galea +3
We investigate a mono-Z process as a potential dark matter search strategy at the LHC. In this channel a single Z boson recoils against missing transverse momentum, attributed to d…
W/Z Bremsstrahlung as the Dominant Annihilation Channel for Dark Matter, Revisited
Nicole F. Bell, James B. Dent, Ahmad J. Galea +3
We revisit the calculation of electroweak bremsstrahlung contributions to dark matter annihilation. Dark matter annihilation to leptons is necessarily accompanied by electroweak ra…
A Model For Late Dark Matter Decay
Nicole F. Bell, Ahmad J. Galea, Raymond R. Volkas
The standard cold dark matter cosmological model, while successful in explaining the observed large scale structure of the Universe, tends to overpredict structure on small scales.…