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 10 of 10 for “"Dark photon"”.
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The DarkLight experiment : searching for the dark photon
… the existence of a massive gauge boson A', the "dark photon," mediating dark matter interactions with coupling strength [alpha]'. In certain models, the A' decays promptly but invisibly and might be discoverable in high luminosity collider experiments. Following a proposed setup by Wojtsekhowski …
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Novel Electromagnetic Properties of Elementary Particles
… charged elementary particles couple to the photon? We discuss neutrino electromagnetic properties, a dark photon portal to dark matter and magnetic monopoles produced by cosmic rays in the milky way. We don't just discuss these models, but show how to place(in some cases) leading constraints …
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Reconstructing Dark Photons with the DarkQuest Experiment at Fermilab
The DarkQuest experiment will search for dark photons by looking for their decay into standard model leptons which can be detected. DarkQuest will use the momentum of these standard model leptons to calculate the position or vertex where the dark photons decay. Looking at the vertex positions will …
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Measuring the Reconstructed A' Acceptance of the Darkquest Electromagnetic Calorimeter
The Darkquest experiment seeks to utilize the existing proton dump beam and detector array at Fermilab, along with the addition of an Electromagnetic Calorimeter (EMCal), for a low cost but well suited way to search for dark matter candidates at energies in the MeV to GeV range. Darkquest will …
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On the origin, dynamics, and detection of superheavy, ultralight, and composite dark matter.
… the quest to uncover the nature and workings of dark matter in the universe. In Chapter 1 we provide a broad introduction to the thesis, introducing many theoretical concepts that will be useful for later chapters. In Chapter 2 we describe how gravitational fields, specifically those of expanding …
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Light Dark Matter Constraints from a SuperCDMS Cryogenic Silicon Detector with Single-Charge Sensitivity
… the universe contains a substantial amount of dark matter, likely composed of particles beyond the Standard Model. The SuperCDMS (Cryogenic Dark Matter Search) SNOLAB experiment is a next-generation direct detection effort using cryogenic germanium and silicon detectors to measure phonon and …
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Initial Conditions for Cosmic Inflation, the History of the Dark Sector, and Dark-Onium
… for large-field models. The particle nature of dark matter is still a mystery. This thesis very briefly summarizes what we know about dark matter and our current efforts to detect it. This thesis also provides the basic tools necessary to calculate the thermal history of the dark sector. Then …
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Parton Distributions in Beyond the Standard Model Theories
… of PDFs together with the parameters of a dark photon model; in particular, we use projected high-luminosity LHC (HL-LHC) data to investigate the sensitivity of the HL-LHC to our particular class of light, leptophobic dark photons. Subsequently, in Chapter 3, we introduce the Standard Model …
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Hidden Sector: Three Different Ways
… mixing and is responsible for a fraction of Dark Matter density of our Universe. The other two projects look at specic signals from a Hidden Sector with two light scalars coupled to the Standard Model through a Higgs Portal. One of these projects looks at collider consequences and the other …
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Searching for Heavy Photons With Detached Vertices in the Heavy Photon Search Experiment
<p>The Jefferson Lab Heavy Photon Search (HPS) experiment is searching for a hypothetical massive particle called the heavy photon which could mediate a dark electromagnetic-type force. If heavy photons kinetically mix with Standard Model photons, they may be radiated by electrons scattering from a …