Carrillo Monteverde, Alba Leticia (2020) Dark Matter direct detection from a model with spin-2 mediators. Doctoral thesis (PhD), University of Sussex.

PDF - Published Version Download (6MB)

Abstract

Dark Matter (DM) and its nature is one of the most interesting problems in modern physics. DM constitutes the 27% of the total content of the Universe and evidence of its existence have been accumulated at diferent scales thanks to its gravitational infuence on ordinary matter. One of the most interesting proposals to study this problem is to assume that DM is made of particles.

We study models where a massive spin-two resonance acts as the mediator between Dark Matter (DM) and the SM particles. The interaction of DM and SM is through the energy-momentum tensor and we explore the scenarios where DM is a fermion, a scalar and a vector field.

We identify the effective interactions when the mediator is interated out, and match them to the gravitational form factors in order to study the DM-nucleon scattering that will be helpful in the phenomenological analysis.

Up to this day, only gravitational efects of DM have been observed but we hope to obtain information that will help us to identify its nature through these three different approaches: direct detection searches, indirect detection techniques and production at colliders. In the context of this work, we obtain the limits on the parameter space of the Gravity Mediated Dark Matter model using the relic density conditions, direct detection bounds and collider searches for the spin-two mediator.

Item Type:	Thesis (Doctoral)
Schools and Departments:	School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects:	Q Science > QB Astronomy > QB0495 Descriptive astronomy > QB0790 Interstellar matter > QB0791.3 Dark matter
Depositing User:	Library Cataloguing
Date Deposited:	29 Jul 2020 09:31
Last Modified:	29 Jul 2020 09:31
URI:	http://sro.sussex.ac.uk/id/eprint/92837

View download statistics for this item

📧 Request an update