The Origin of Matter in Supersymmetric Theories
Lead Research Organisation:
University of Manchester
Department Name: Physics and Astronomy
Abstract
Supersymmetry (SUSY) is an elegant theoretical framework which aspires to technically address several problems that are central in Particle Physics and Cosmology, such as the infamous gauge-hierarchy problem, the unification of gauge couplings and the nature of the Dark Matter (DM) in the Universe. The aim of this PhD project is to understand the origin of the visible and dark matter in minimal supersymmetric theories of inflation. Our emphasis will be placed on exploring possible connections between the observable light neutrinos, the DM and the Baryon Asymmetry in the Universe. Finally, our goal is to identify distinct phenomenological signatures from such an exploration that can be tested at both high- and low-energy precision experiments.
Organisations
People |
ORCID iD |
| Apostolos Pilaftsis (Primary Supervisor) | |
| Thomas Mckelvey (Student) |
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| ST/T506291/1 | 01/10/2019 | 30/09/2023 | |||
| 2487148 | Studentship | ST/T506291/1 | 01/10/2020 | 31/03/2024 | Thomas Mckelvey |
| ST/V506898/1 | 01/10/2020 | 30/09/2024 | |||
| 2487148 | Studentship | ST/V506898/1 | 01/10/2020 | 31/03/2024 | Thomas Mckelvey |
| Description | This work has studied mechanisms for generating appreciable matter/anti-matter asymmetries in models beyond the Standard Model. In particular, models with the introduction of additional neutrinos. In the work, it was shown that a model with a symmetric structure would be able to satisfy both the observed neutrino mass data and allow for large CP asymmetries. This latter point is significant since CP asymmetry is a necessary condition for generating appreciable matter asymmetry, as outlined by Sakharov in his three conditions. Furthermore, the dynamics of two-level systems were studied in the context of a decaying system. This second work showed that decaying systems would tend toward a fixed solution, except in exceptional circumstances. The properties of these exceptional circumstances were analysed; related quantities, such as the entropy, were calculated; and a comparison with current experiments was shown. |
| Exploitation Route | The work done on matter/anti-matter asymmetry is a current active field of study, and as a result, the findings are readily applicable to the field. Consequently, these outcomes may be taken forward by academics or for development by future post-graduate students in their own PhD studies. For the second piece of work, the results shown may have applications in quantum computing since the formalism we adopt is regularly utilised in the study of quantum information. |
| Sectors | Digital/Communication/Information Technologies (including Software),Education |
| URL | https://link.springer.com/article/10.1007/JHEP11(2022)065 |