Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"relic density"”.
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Cosmology of hidden sector with Higgs portal
… the Higgs field. We particularly focus on their relic particle density as a candidate for dark matter. For the case of hidden sector without a gauge field we have improved the accuracy of the bounds on the coupling constant and give bounds on the Lagrangian parameters. Models with Abelian and …
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Dark matter searches with cosmic-ray detectors and the Square Kilometre Array
… particles with a significant associated thermal relic density and would explain dark matter observational features.
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On effective field theory of dark matter
… models respectively. We determine the thermal relic density of particles interacting with each of our operators and show that viable thermal relics that evade experimental constraints can exist with masses as low as as $100\GeV$ and up to $10\TeV$ due to the mass splittings that arise at …
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Exploring New Frontiers in High Energy Physics: Boosted Resonances Decaying To Quarks, Foundation Models, and Heterogeneous Computing at the CMS Experiment
… photons and dark matter in the context of the relic density.
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Analysis of vacuum and argon gas fill data from the MiniCLEAN dark matter experiment
… a mechanism for producing the cold dark matter relic density, which along with dark energy is thought to dominate the current energy density of our universe. Efforts to observe the rare interaction of WIMPs with normal matter have continued since their proposal, and so far have set limits on the …
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Higgs-Portal and Z'-Portal Dark Matters in Brane-World Cosmologies
… approximately 27% of the Universe's total energy density. However, no viable DM particle candidate exists within the framework of the Standard Model (SM) of particle physics. An electrically neutral, weakly interacting massive particle (WIMP) from physics beyond theSM emerges as an appealing …
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Initial Conditions for Cosmic Inflation, the History of the Dark Sector, and Dark-Onium
… set of novel pathways which lead to the observed relic density of the dark matter is revealed. This thesis also examines the [formula] regime of the vector-portal inelastic dark matter model, where the dark matter is made up of a Majorana ground state 𝜒 and excited state 𝜒 * with a small mass …