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...
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Format: | Final Year Project |
Language: | English |
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Nanyang Technological University
2020
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Online Access: | https://hdl.handle.net/10356/137086 |
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Institution: | Nanyang Technological University |
Language: | English |
Summary: | 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. |
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