|
|
|
|
| LEADER |
01879 am a22002773u 4500 |
| 001 |
101607 |
| 042 |
|
|
|a dc
|
| 100 |
1 |
0 |
|a Fonseca, Nayara
|e author
|
| 100 |
1 |
0 |
|a Massachusetts Institute of Technology. Center for Theoretical Physics
|e contributor
|
| 100 |
1 |
0 |
|a Massachusetts Institute of Technology. Department of Physics
|e contributor
|
| 100 |
1 |
0 |
|a Fonseca, Nayara
|e contributor
|
| 100 |
1 |
0 |
|a Necib, Lina
|e contributor
|
| 100 |
1 |
0 |
|a Thaler, Jesse
|e contributor
|
| 700 |
1 |
0 |
|a Necib, Lina
|e author
|
| 700 |
1 |
0 |
|a Thaler, Jesse
|e author
|
| 245 |
0 |
0 |
|a Dark matter, shared asymmetries, and galactic gamma ray signals
|
| 260 |
|
|
|b Institute of Physics Publishing/SISSA,
|c 2016-03-04T18:35:12Z.
|
| 856 |
|
|
|z Get fulltext
|u http://hdl.handle.net/1721.1/101607
|
| 520 |
|
|
|a We introduce a novel dark matter scenario where the visible sector and the dark sector share a common asymmetry. The two sectors are connected through an unstable mediator with baryon number one, allowing the standard model baryon asymmetry to be shared with dark matter via semi-annihilation. The present-day abundance of dark matter is then set by thermal freeze-out of this semi-annihilation process, yielding an asymmetric version of the WIMP miracle as well as promising signals for indirect detection experiments. As a proof of concept, we find a viable region of parameter space consistent with the observed Fermi excess of GeV gamma rays from the galactic center.
|
| 520 |
|
|
|a United States. Dept. of Energy (Cooperative Research Agreement DE-SC-00012567)
|
| 520 |
|
|
|a Fundacao de Amparo a Pesquisa do Estado de Sao Paulo
|
| 520 |
|
|
|a Conselho Nacional de Pesquisas (Brazil)
|
| 520 |
|
|
|a United States. Dept. of Energy (Early Career Research Program DE-SC0006389)
|
| 520 |
|
|
|a Alfred P. Sloan Foundation (Sloan Research Fellowship)
|
| 655 |
7 |
|
|a Article
|
| 773 |
|
|
|t Journal of Cosmology and Astroparticle Physics
|
