Gabrovski, Ivo (2020) Simplified Models for Dark Matter-Neutrino Interactions. Bachelor's Thesis, Physics.
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Abstract
In this thesis we begin with a brief review on Dark Matter and neutrino physics, which serves as a broad introduction to the topic and what follows. In the main part of the thesis, we take a closer look at a scenario where Dark Matter interacts weakly with neutrinos. More specifically, Dark Matter is taken to be a Weakly Interacting Massive Dirac fermion, which interacts with neutral leptons via a complex scalar mediator. Elastic scattering and self-annihilation of Dark Matter are examined closely by construction and computation of Feynman diagrams, amplitudes, and respective cross-sections of the interactions. The final parameter space of the model consists of the masses of the newly introduced Dark Matter and mediator particles and the coupling strength parameter of the interaction. The model is subsequently constrained by the most recent cosmological observations and analysis of the Cosmic Microwave Background by the Planck Collaboration. The parameter space is restricted greatly and the restrictions result in a model, which fits very well with current expectations and predictions for Dark Matter interactions on the scale of WIMPs. Possible signatures in direct and indirect detection are briefly discussed.
| Item Type: | Thesis (Bachelor's Thesis) |
|---|---|
| Supervisor name: | Biondini, S. |
| Degree programme: | Physics |
| Thesis type: | Bachelor's Thesis |
| Language: | English |
| Date Deposited: | 13 Jul 2020 13:36 |
| Last Modified: | 13 Jul 2020 13:36 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/22652 |
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