| Full text | |
| Author(s): |
Bernal, Nicolas
;
Fong, Chee Sheng
;
Fonseca, Nayara
Total Authors: 3
|
| Document type: | Journal article |
| Source: | Journal of Cosmology and Astroparticle Physics; v. N/A, n. 9, p. 29-pg., 2016-09-01. |
| Abstract | |
We consider scenarios where Dark Matter (DM) particles carry baryon and/or lepton numbers, which can be defined if there exist operators connecting the dark to the visible sector. As a result, the DM fields become intimately linked to the Standard Model (SM) ones and can be maximally asymmetric just like the ordinary matter. In particular, we discuss minimal scenarios where the DM is a complex scalar or a Dirac fermion coupled to operators with nonzero baryon and/or lepton numbers, and that consist of only SM fields. We consider an initial asymmetry stored in either the SM or the DM sector; the main role of these operators is to properly share the asymmetry between the two sectors, in accordance with observations. After the chemical decoupling, the DM and SM sectors do not care about each other as there is only an ineffective communication between them. Once the DM mass is specified, the Wilson coefficients of these operators are fixed by the requirement of the correct transfer of the asymmetry. We study the phenomenology of this framework at colliders, direct detection and indirect detection experiments. In particular, the LHC phenomenology is very rich and can be tested in different channels such as the two same-sign leptons with two jets, monojet and monojet with a monolepton. (AU) | |
| FAPESP's process: | 11/11973-4 - ICTP South American Institute for Fundamental Research: a regional center for theoretical physics |
| Grantee: | Nathan Jacob Berkovits |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 15/15361-4 - Non-minimal dark matter models and beyond standard model physics |
| Grantee: | Nayara Fonseca de Sá |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |
| FAPESP's process: | 12/10995-7 - Particle physics phenomenology |
| Grantee: | Gustavo Alberto Burdman |
| Support Opportunities: | Research Projects - Thematic Grants |