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.
Results
Showing 1 to 20 of 30 for “"WIMPs"”.
-
Wimps, dorks, and reluctant readers: Redefining literacy in multimodal middle grade diary books
<p>Since the release of Jeff Kinney’s <em>Diary of a Wimpy Kid</em>, the multimodal, middle-grade diary book has gained popularity. The series features “handwritten,” journal entries and drawings and has elicited many imitators, the most prominent of which is Rachel Renee Russell’s <em>Dork …
-
CRESST Dark Matter Search with Cryogenic Calorimeters
… von schwach wechselwirkenden massiven Teilchen (WIMPs) ueber elastische Streuung an Kernen. Die erste Phase von CRESST benutzte 262 g Saphir Kristalle als Absorber. Ein niedriger Untergrund, eine Langzeitstabilitaet des kryogenen Aufbaus, sowie eine niedrige Schwelle und eine hohe Sensitivitaet …
-
Search for Gamma-ray Spectral Lines with the Fermi Large Area Telescope and Dark Matter Implications
… for investigating these elusive particles. As WIMPs are predicted to be heavy, their interactions should produce high-energy gamma rays that would be detected by the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope (Fermi). If WIMPs annihilate directly into gamma rays, the …
-
XENON100 Dark Matter Search: Scintillation Response of Liquid Xenon to Electronic Recoils
… matter. Weakly Interacting Massive Particles (WIMPs) are the most well-motivated dark matter candidates and significant efforts have been made to search for WIMPs. The XENON100 dark matter experiment is currently the most sensitive experiment in the global race for the first direct detection of …
-
Characterization of electroluminescence signals from nuclear recoil events in the dual-phase argon Time Projection Chamber of the Red experiment with Convolutional Autoencoders
… are Weakly Interacting Massive Particles (WIMPs), whose thermal relic abundance from the Big Bang aligns with current observations. The Global Argon Dark Matter Collaboration (GADMC) seeks to directly detect WIMPs using DarkSide-20k, a multi-ton dual-phase liquid argon Time Projection …
-
Alpha Spectroscopy in a Superheated Bubble Chamber and the Design of the PICO-500 Hydraulic Control Cart
… mechanism. Weakly interacting massive particles (WIMPs) are a leading dark matter candidate, and the PICO collaboration has made significant strides in searching for WIMPs, focusing on the spin-dependent WIMP-proton interaction. The PICO collaboration employs acoustic energy discrimination to …
-
A search for light weakly-interacting massive particles with SuperCDMS and applications to neutrino physics
… for weakly-interacting massive particles (WIMPs), the leading class of particle candidates for dark matter. This thesis describes the results of such a search with the SuperCDMS experiment, which uses Ge detectors cooled to 50 mK to detect ionization and phonons produced by particle …
-
Analysis of vacuum and argon gas fill data from the MiniCLEAN dark matter experiment
… of weakly-interacting massive particles (WIMPs) was proposed in the early 1980s to account for the anomalous rotation curves and provide 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 …
-
Calibration of Infrared Photons in Cryogenic Germanium Detectors
… candidate. Weakly Interacting Massive Particles (WIMPs) are one of the well-motivated candidates for dark matter. So far, no answers were provided by the Standard Model of particle physics to the dark matter puzzle. The Super Cryogenic Dark Matter Search experiment (SuperCDMS) is considered one of …
-
Development of an Experimental Setup to Measure the Radiopurity of Argon from Urania and Aria
… are Weakly Interacting Massive Particles (WIMPs). In a \textit{large} and low-background target, WIMPs are expected to undergo \textit{nuclear recoil} with the target nucleus, producing a detectable signal above the background. DarkSide-20k (DS-20k) is a planned 20-tonne fiducial mass …
-
Point by point gain calibration of the Dark Matter Time Projection Chamber
… incoming weakly interacting massive particles (WIMPs). In this thesis I analyze nonuniformities in the CCD images used to record the nuclear recoils. I then identify the source of the nonuniformities and describe a method for calibrating the CCD images. The method improves the energy resolution …
-
A search for signatures of dark matter in the AMS-01 electron and antiproton spectrum
… of Weakly Interacting Massive Particles (WIMPs), such as the supersymmetric neutralino, various theories predict that their annihilation in the galaxy can give rise to anomalous features in the otherwise smooth spectra of charged cosmic rays. Up to now searches for these spectral anomalies …
-
A Search for WIMP Dark Matter using an Optimized Chi-square Technique on the Final Data from the Cryogenic Dark Matter Search Experiment (CDMS II).
… <p>Weakly Interacting Massive Particles (WIMPs) are well motivated class of dark matter candidates that arise naturally in supersymmetric extensions to the Standard Model of particles physics, and can be produced as non-relativistic thermal relics in the early universe with about the right …
-
The first second of leptons
… significantly. For the relic abundance of WIMPs, depending on g_{ast} of all particles at the freeze out temperature 40 GeV > T_fo > 0.4 GeV we find a decreasing of few percent depending on l_f . For an asymmetry of l_f = 0.1 in all three flavour we find a decrease of the relic WIMP …
-
The Light Response of the XENON100 Time Projection Chamber and the Measurements of the Optical Parameters with the Xenon Scintillation Light
… search for weakly interacting massive particles (WIMPs). These particles are the leading candidates to explain the non-baryonic, cold dark matter in our Universe. XENON100, the successor experiment of XENON10, has increased the target liquid xenon mass to 61 kg with a 100 times reduction in …
-
Reconstructing nuclear recoil tracks in the Dark Matter Time Projection Chamber
… chamber filled with CF 4 gas to search for WIMPs via elastic collisions. Crucial to this experiment is the fidelity of nuclear recoil track reconstruction. By extracting parameters such as the angle and vector direction of nuclear recoils, DMTPC has sensitivity to the anisotropic WIMP …
-
A time domain phonon pulse fitting analysis for the cryogenic dark matter search experiment
… ionization, especially for nuclear recoils from WIMPs. Because of this, there is a strong motivation for extracting as much information as possible from the phonon signal. For my thesis, the raw phonon pulse signal in the time domain was fit to a functional form based on phonon physics within the …
-
The XENON100 Dark Matter Experiment: Design, Construction, Calibration and 2010 Search Results with Improved Measurement of the Scintillation Response of Liquid Xenon to Low-Energy Nuclear Recoils
… stable weakly interacting massive particles (WIMPs) that could naturally have the right cosmological relic abundance today to compose most of the dark matter if their interactions with normal matter are on the order of a weak scale cross section. These candidates also have the added benefit …
-
The search for dark matter annihilation in galaxy clusters at VERITAS
… a mass as low as ∼10 GeV to as high as ∼10 TeV. WIMPs are believed to be their own antiparticles and self-annihilate into a variety of lighter particles including γ-rays. Many direct detection, indirect detection, and direct production schemes have been proposed to search for the elusive WIMP. …
-
Design of the electron spectrometer for the HUNTER experiment and timescale of electron thermalization in liquid Argon for directional detection of WIMP dark matter
… might introduce a directional anisotropy in the WIMPs momentum distribution at the Earth. The shape of a WIMP-like recoil in a target material could be be used to extract directional information for the incident WIMP, and thus confirm the anisotropy. The peculiar microphysics of liquid Argon …
Page 1 of 2