activity
20122025
most citedUpdated cosmic-ray and radio constraints on light dark matter: Implications for the GeV gamma-ray excess at the Galactic center

96 citations · 339 across the 15 of their papers we have counts for

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9 papers · 1 filter

hep-ph2025

Resummed multi-line gamma-ray spectra for Cherenkov Telescopes from heavy spin-1 dark matter

Motoko Fujiwara, Martin Vollmann

Electroweakly interacting stable spin-1 particle in the TeV mass range can be a dark matter candidate with rich testability. In particular, one or even two gamma-ray line-…

hep-ph2023

Sommerfeld effect for continuum gamma-ray spectra from Dark Matter annihilation

Barbara Jäger, Martin Vollmann

We present a calculation of the continuum part of the gamma-ray spectra resulting from Dark Matter annihilation in the framework of the MSSM taking into account Sommerfeld effects.…

hep-ph2022★ 13 cited

Matching resummed endpoint and continuum -ray spectra from dark-matter annihilation

Martin Beneke, Kai Urban, Martin Vollmann

For the minimal wino and Higgsino benchmark models we provide accurate energy spectra of high-energy photons from TeV scale dark-matter annihilation by merging electrow…

hep-ph2019★ 20 cited

Precise yield of high-energy photons from Higgsino dark matter annihilation

Martin Beneke, Caspar Hasner, Kai Urban +1

The impact of electroweak Sudakov logarithms on the endpoint of the photon spectrum for wino dark matter annihilation was studied intensively over the last several years. In this w…

hep-ph2019★ 34 cited

Resummed photon spectrum from dark matter annihilation for intermediate and narrow energy resolution

M. Beneke, A. Broggio, C. Hasner +2

The annihilation cross section of weakly interacting TeV scale dark matter particles into photons is affected by large quantum corrections due to electroweak Sudakov logarith…

hep-ph2018★ 39 cited

Energetic -rays from TeV scale dark matter annihilation resummed

M. Beneke, A. Broggio, C. Hasner +1

The annihilation cross section of TeV scale dark matter particles with electroweak charges into photons is affected by large quantum corrections due to Sudakov logarithms and…

hep-ph2016★ 39 cited

Dirac dark matter and with gauge symmetry

Alejandro Celis, Wan-Zhe Feng, Martin Vollmann

We revisit the possibility of a Dirac fermion dark matter candidate in the light of current anomalies by investigating a minimal extension of the Standard M…

hep-ph2014★ 18 cited

Enhanced Line Signals from Annihilating Kaluza-Klein Dark Matter

Chiara Arina, Torsten Bringmann, Joseph Silk +1

Monochromatic gamma ray lines have long been known to provide potential smoking gun signals for annihilating dark matter. Here, we demonstrate that the situation is particularly in…

hep-ph2012★ 25 cited

The 130 GeV gamma-ray line and generic dark matter model building constraints from continuum gamma rays, radio and antiproton data

Masaki Asano, Torsten Bringmann, Gunter Sigl +1

An analysis of the Fermi gamma ray space telescope data has recently revealed a resolved gamma-ray feature close to the galactic center which is consistent with monochromatic photo…