Published December 2016
| Version v1
Journal article
Soft gamma rays from heavy WIMPs
- 1. Bethe Center for Theoretical Physics & Physikalisches Institut der Universität Bonn, Nußallee 12, 53115 Bonn (Germany)
- 2. Theory Department, CERN, 1211 Geneva 23 (Switzerland)
Description
We propose an explanation of the galactic center gamma ray excess by supersymmetric WIMPs as heavy as 500 GeV. The lightest neutralino annihilates into vector-like leptons or quarks which cascade decay through intermediate Higgs bosons. Due to the long decay chains, the gamma ray spectrum is much softer than naively expected and peaks at GeV energies. The model predicts correlated diboson and dijet signatures to be tested at the LHC.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.dark.2016.08.004Additional details
Identifiers
- DOI
- 10.1016/j.dark.2016.08.004;
- arXiv
- arXiv:1605.05327v2;
- PII
- S2212686416300474;
Publishing Information
- Journal Title
- Physics of the Dark Universe
- Journal Volume
- 14
- Journal Page Range
- p. 29-34
- ISSN
- 2212-6864
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 51081289
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CERN LHC; GAMMA RADIATION; GEV RANGE 100-1000; HIGGS BOSONS; LEPTONS; NEUTRALINOS; PARTICLE DECAY; PEAKS; QUARKS; SUPERSYMMETRY; WIMPS
- Descriptors DEC
- ACCELERATORS; BOSONS; CYCLIC ACCELERATORS; DECAY; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; IONIZING RADIATIONS; POSTULATED PARTICLES; RADIATIONS; SPARTICLES; STORAGE RINGS; SYMMETRY; SYNCHROTRONS
Optional Information
- Copyright
- Copyright (c) 2016 Elsevier B.V. All rights reserved.