193 citations · 1.5k across the 27 of their papers we have counts for
6 papers · 1 filter
Gamma-ray triangles: a possible signature of asymmetric dark matter in indirect searches
Alejandro Ibarra, Sergio Lopez-Gehler, Emiliano Molinaro +1
We introduce a new type of gamma-ray spectral feature, which we denominate gamma-ray triangle. This spectral feature arises in scenarios where dark matter self-annihilates via a ch…
Internal bremsstrahlung signatures in light of direct dark matter searches
Mathias Garny, Alejandro Ibarra, Miguel Pato +1
Although proposed long ago, the search for internal bremsstrahlung signatures has only recently been made possible by the excellent energy resolution of ground-based and satellite-…
Gamma-ray boxes from axion-mediated dark matter
Alejandro Ibarra, Hyun Min Lee, Sergio López Gehler +2
We compute the gamma-ray output of axion-mediated dark matter and derive the corresponding constraints set by recent data. In such scenarios the dark matter candidate is a Dirac fe…
On the spin-dependent sensitivity of XENON100
Mathias Garny, Alejandro Ibarra, Miguel Pato +1
The latest XENON100 data severely constrains dark matter elastic scattering off nuclei, leading to impressive upper limits on the spin-independent cross-section. The main goal of t…
Closing in on mass-degenerate dark matter scenarios with antiprotons and direct detection
Mathias Garny, Alejandro Ibarra, Miguel Pato +1
Over the last years both cosmic-ray antiproton measurements and direct dark matter searches have proved particularly effective in constraining the nature of dark matter candidates.…
Dark matter constraints from box-shaped gamma-ray features
Alejandro Ibarra, Sergio López Gehler, Miguel Pato
The observation of a sharp spectral feature in the gamma-ray sky would be one of the cleanest ways to identify dark matter and pinpoint its properties. Over the years a lot of atte…