Cosmological implications of Dark Matter bound states
| Autor: | Juri Smirnov, Alessandro Strumia, Andrea Mitridate, Michele Redi |
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| Přispěvatelé: | Mitridate, Andrea, Redi, Michele, Smirnov, Juri, Strumia, Alessandro |
| Rok vydání: | 2017 |
| Předmět: |
Physics
Gluino Particle physics particle physics -cosmology connection 010308 nuclear & particles physics Physics beyond the Standard Model Dark matter theory Dark matter FOS: Physical sciences hep-ph Astronomy and Astrophysics Fermion Gauge (firearms) 01 natural sciences High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences Bound state cosmology of theories beyond the SM 010306 general physics Particle Physics - Phenomenology |
| Zdroj: | Journal of Cosmology and Astroparticle Physics |
| ISSN: | 1475-7516 0202-2893 1367-2630 1126-6708 0954-3899 0305-4470 |
| Popis: | We present generic formulae for computing how Sommerfeld corrections together with bound-state formation affects the thermal abundance of Dark Matter with non-abelian gauge interactions. We consider DM as a fermion 3plet (wino) or 5plet under SU(2)$_L$. In the latter case bound states raise to 14 TeV the DM mass required to reproduce the cosmological DM abundance and give indirect detection signals such as (for this mass) a dominant $\gamma$-line around 85 GeV. Furthermore, we consider DM co-annihilating with a colored particle, such as a squark or a gluino, finding that bound state effects are especially relevant in the latter case. Comment: 40 pages, 11 figures. v3: post-confinement QCD effects added; O(1) factor fixed |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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