Browsing Physics by Title
Now showing items 1-20 of 260
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3d Bosonization: Flavor-Violated, Bordered, Quivered, and Stacked
In this work we discuss several aspects of the 3d bosonization dualities, which are a conjectured equivalence between Chern-Simons matter theories in $2+1$-dimensions. We propose a new phrase diagram for the most general ... -
A Fourier-Bessel Test of the Gravitational Inverse-Square Law
This dissertation presents the latest E\"{o}t-Wash group test of the gravitiational Inverse Square Law (ISL) at the shortest possible distances using a stationary torsion pendulum above a rotating attractor. It largely ... -
A measurement of the $e$-$\bar{\nu_e}$ angular correlation coefficient in the decay of $^6$He
A measurement of the beta-neutrino angular correlation coefficient $a_{\beta\nu}$ in the pure Gamow-Teller $\beta^-$ decay of $^6$He has been performed to the level of $2.2\%$ in order to search for exotic tensor-type ... -
A Piezoelectrically Tuned RF-Cavity Search for Dark Matter Axions
The Axion is a well motivated hypothetical elementary particle that must exist in nature if the strong CP problem of QCD is explained by the spontaneous breaking of a Peccei-Quinn symmetry. Not only would the discovery of ... -
A Radiogenic Background Model for the MAJORANA DEMONSTRATOR
Neutrinoless double-beta decay (0vbb) is a lepton-number-violating process whose existence would indicate that neutrinos are Majorana fermions. The MAJORANA collaboration is searching for 0vbb in germanium-76 using a modular ... -
A search for hep solar neutrinos at the Sudbury Neutrino Observatory
Solar neutrinos from the fusion hep reaction, (helium-3 fusing with a proton to become helium-4, releasing a positron and neutrino), have previously remained undetected due to their flux being about one one-thousandth that ... -
A Search for Long Lived Neutral Particles Decaying to Hadronic States in Proton-Proton Collisions in the ATLAS Detector at sqrt(s) = 8 TeV and sqrt(s) = 13 TeV at the LHC
A search for the decay of a heavy scalar boson into pairs of long-lived neutral particles in \intlumi of proton proton collisions at $\sqrt{s}=8$~TeV and $3.2~\rm{fb}^{-1}$ at $\sqrt{s}=13$~TeV in the ATLAS detector is ... -
A Search for Wavelike Dark Matter with Dielectrically-loaded Multimode Cavities
Dark matter makes up 85% of the matter in the universe and 27% of its energy density, but we don’t know what comprises dark matter. There are several compelling candidates for dark matter that have wavelike properties, ... -
Ab initio calculations of phonon properties and spectra in condensed matter
Phonons, the quantization of atomic vibrations, are important in studying many solid state properties, ranging from Raman, infrared, and neutron scattering to thermal expansion, specific heat, and heat conductivity to ... -
Addressing Beyond Standard Model physics using cosmology
We have consensus models for both particle physics (i.e. standard model) and cosmology (i.e. $\Lambda$CDM). Given certain assumptions about the initial conditions of the universe, the marriage of the standard model (SM) ... -
Adsorption of Noble Gases on Individual Suspended Single-Walled Carbon Nanotubes
(2014-02-24)The focus of this work is a study of the adsorption of noble gases on individual, suspended, single-walled carbon nanotubes (SWNTs). The surface of a SWNT is a cylindrical cousin of graphite, but the binding energy is ... -
Advances to Three-Particle Quantization Conditions: Hadron Scattering Amplitudes from Lattice QCD
The strong nuclear force is responsible for the vast majority of particles in nature; hundreds of hadrons with distinct masses and quantum numbers have been detected, and experimentalists are constantly searching for new ... -
Advancing Atom Interferometry with a Bloch-bands Approach
This work presents experiments and theory on ``magic depths" in Bloch oscillation acceleration pulses and the implications for advancing atom interferometry. For a particle in a sinusoidal potential, we define the magic ... -
Aluminum Content Tunability of Structural and Optical Properties in Wide-Gap Semiconducting (AlxGa1-x)2O3
(AlxGa1-x)2O3 alloys have attracted renewed interest due to their potential for use in deep-ultraviolet optical devices and high-powered transistors, but realization of these technologies depends on the ability to tune the ... -
An exploration of data-driven system identification and machine learning for plasma physics
Plasma is the most common state of visible matter in the universe and provides a myriad of scientific and engineering applications. However, the complexity of these systems poses a significant challenge for understanding ... -
An image segmentation, lineage and analysis tool for bacteria: Applications in cell proliferation and cytoplasmic dynamics.
Because of the stochastic nature and significant cell-to-cell variation of many biological processes, it is essential to analyze a significant number of cells to understand such processes at the single cell level. Such ... -
An Investigation of Introductory Student Understanding of Special Relativity in the Context of the Relativity of Simultaneity
This dissertation describes the results of an investigation into introductory student understanding of special relativity in the context of the relativity of simultaneity. The research probes the extent to which students ... -
An investigation of student difficulties in qualitative and quantitative physics problems: Examples from linear kinematics, rolling motion, fluid mechanics, and vector superposition
This dissertation consists of two primary studies on student understanding of physics. These include a broad investigation of student understanding of the motion of different kinds of objects (particle, rigid body, and ... -
Analysis of slow formation of plasmas in a coaxial double theta pinch
(1993)Plasma formation in a coaxial double theta pinch device is analyzed. This device, called the Coaxial Slow Source (CSS), has demonstrated the formation of annular field reversed configurations on diffusive timescales. Three ... -
Analytical forward models for magnetic induction of asymmetric, icy ocean worlds with implications for spacecraft investigations
Oscillating magnetic fields are screened within electrically conducting materials by induced currents, which generate secondary, induced magnetic fields. Induced fields are measurable outside the conducting body, and adopt ...