Global analysis of dark matter simplified models (DMSMs) with leptophilic spin-one mediators using the MasterCode framework

Recent cosmological and astrophysical studies have shown that ordinary matter, which can be observed directly, only constitutes 15% of the total matter content of Universe. The remaining 85% is what cosmologists and astrophysicists termed as exotic matter. Exotic matter is any form of matter whos...

Full description

Saved in:
Bibliographic Details
Main Author: Goh, Edwin Duo Yao
Other Authors: Chew Lock Yue
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2020
Subjects:
Online Access:https://hdl.handle.net/10356/137086
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-137086
record_format dspace
spelling sg-ntu-dr.10356-1370862023-02-28T23:19:19Z Global analysis of dark matter simplified models (DMSMs) with leptophilic spin-one mediators using the MasterCode framework Goh, Edwin Duo Yao Chew Lock Yue School of Physical and Mathematical Sciences European Organization for Nuclear Research (CERN) Albert de Roeck lockyue@ntu.edu.sg, deroeck@mail.cern.ch Science::Physics Recent cosmological and astrophysical studies have shown that ordinary matter, which can be observed directly, only constitutes 15% of the total matter content of Universe. The remaining 85% is what cosmologists and astrophysicists termed as exotic matter. Exotic matter is any form of matter whose properties, behaviour and interactions differ from those observed in ordinary matter. Since they cannot be detected directly, anomalities in astrophysical observations can be evidence for their existence. These anomalities seem to favour a form of matter called Dark Matter (DM) as one of the highly plausible candidates for exotic matter. Hence, a collective group of theories known as Dark Matter Simplified Models (DMSMs) were developed to study this form of matter in greater detail. One thing to note about these theories is that they do not provide the identity of the DM particle. However, one of the objectives of these theories is to provide limits on the masses of DM particles. Hence, this would be one of the key results that would be presented in this thesis. Being theoretical models, the feasibility of DMSMs still needs to be validated by exper- imental results. Although a range of experiments have published a number of papers with regards to these limits, a global fit has yet to be conducted so as to gain a better understanding of these models. Although the MasterCode framework, which is actually a code package, was previously used to conduct global fits of Supersymmetric (SUSY) models to data from a variety of experiments, it can also be used to conduct global fits for a multitude of other models, including DMSMs. For these reasons, the MasterCode framework was employed to conduct these global fit for DMSMs. Bachelor of Science in Physics 2020-02-21T02:55:30Z 2020-02-21T02:55:30Z 2020 Final Year Project (FYP) https://hdl.handle.net/10356/137086 en application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Physics
spellingShingle Science::Physics
Goh, Edwin Duo Yao
Global analysis of dark matter simplified models (DMSMs) with leptophilic spin-one mediators using the MasterCode framework
description Recent cosmological and astrophysical studies have shown that ordinary matter, which can be observed directly, only constitutes 15% of the total matter content of Universe. The remaining 85% is what cosmologists and astrophysicists termed as exotic matter. Exotic matter is any form of matter whose properties, behaviour and interactions differ from those observed in ordinary matter. Since they cannot be detected directly, anomalities in astrophysical observations can be evidence for their existence. These anomalities seem to favour a form of matter called Dark Matter (DM) as one of the highly plausible candidates for exotic matter. Hence, a collective group of theories known as Dark Matter Simplified Models (DMSMs) were developed to study this form of matter in greater detail. One thing to note about these theories is that they do not provide the identity of the DM particle. However, one of the objectives of these theories is to provide limits on the masses of DM particles. Hence, this would be one of the key results that would be presented in this thesis. Being theoretical models, the feasibility of DMSMs still needs to be validated by exper- imental results. Although a range of experiments have published a number of papers with regards to these limits, a global fit has yet to be conducted so as to gain a better understanding of these models. Although the MasterCode framework, which is actually a code package, was previously used to conduct global fits of Supersymmetric (SUSY) models to data from a variety of experiments, it can also be used to conduct global fits for a multitude of other models, including DMSMs. For these reasons, the MasterCode framework was employed to conduct these global fit for DMSMs.
author2 Chew Lock Yue
author_facet Chew Lock Yue
Goh, Edwin Duo Yao
format Final Year Project
author Goh, Edwin Duo Yao
author_sort Goh, Edwin Duo Yao
title Global analysis of dark matter simplified models (DMSMs) with leptophilic spin-one mediators using the MasterCode framework
title_short Global analysis of dark matter simplified models (DMSMs) with leptophilic spin-one mediators using the MasterCode framework
title_full Global analysis of dark matter simplified models (DMSMs) with leptophilic spin-one mediators using the MasterCode framework
title_fullStr Global analysis of dark matter simplified models (DMSMs) with leptophilic spin-one mediators using the MasterCode framework
title_full_unstemmed Global analysis of dark matter simplified models (DMSMs) with leptophilic spin-one mediators using the MasterCode framework
title_sort global analysis of dark matter simplified models (dmsms) with leptophilic spin-one mediators using the mastercode framework
publisher Nanyang Technological University
publishDate 2020
url https://hdl.handle.net/10356/137086
_version_ 1759858083493838848