Browsing Theses/Dissertations - Physics by Title
Now showing items 6-25 of 26
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Fabrication of a single layer organic photovoltaic device based on an indium-tin-oxide/copper phthalocyanine/aluminum heterostructure.
(2007-01-18)An ultra high vacuum chamber was designed and constructed for the purpose of fabricating organic photovoltaic devices. Thermal vapor deposition of copper phthalocyanine as the active layer and aluminum as the cathode ... -
Fundamental particle and wave dynamics in dusty plasmas.
(, 2012-11-29)Dusty plasma is a low-temperature plasma containing dust particles varying in size from nanometers to micrometers. Due to plasma fluxes to its surface, a dust particle will charge negatively or positively depending on the ... -
Fundamental physics within complex plasmas.
(, 2012-11-29)In this work, both experimental and numerical methods are used to investigate several of the fundamental processes and assumptions commonly found in an earth-based radio-frequency (RF) complex plasma discharge. First the ... -
Gravitational collapse and formation of black holes in the Brans-Dicke theory of gravity with (2+1) dimensions.
(2008-03-03)In this thesis, the gravitational collapse of the Brans-Dicke scalar field and formation of black holes in 2+1 Gravity is examined. In contrast to general relativity, there are two conformally related frames in the ... -
Hořava-Lifshitz theory of gravity and its applications to cosmology.
(, 2013-09-16)In this dissertation, I studied Hořava-Lifshitz gravity and its applications to inflationary cosmology. After introducing the original proposal with the projectability and detailed balance conditions, I discussed its ... -
Impact of microphysical interactions on aggregate morphologies.
(, 2012-11-29)Coagulation of (sub)micron-sized dust particles occurs in a variety of envi- ronments; such as the interstellar medium, protoplanetary disks, Earth's upper atmosphere and industrial processes. Understanding the physics ... -
Initial systematic investigations of the weakly coupled free fermionic heterotic string landscape statistics.
(, 2011-09-14)A C++ framework was constructed with the explicit purpose of systematically generating string models using the Weakly Coupled Free Fermionic Heterotic String (WCFFHS) method. The software, optimized for speed, generality, ... -
Investigation into compactifed dimensions: Casimir energies and phenomenological aspects.
(2009-01-07)A central theme in this dissertation is the notion of the quantum vacuum. To a particle physicist, the term 'vacuum' means the ground state of a theory. In general, this ground state must obey Lorentz invariance, at least ... -
Investigation of low Higgs models in Weakly Coupled Free Fermionic Heterotic String Theory.
(2010-10-08)Superstring phenomenology explores classes of vacua which can reproduce the Standard Model at low energy. We consider Weakly Coupled Free Fermionic Heterotic String Theory (WCFFHST) which produces four dimensional Standard-like ... -
LEED and STM studies of rutile (1x1) and (1x2) TiO2(110).
(2016-04-20)The structures and properties of rutile (1x1) and (1x2) TiO2(110) surfaces are studied using low energy electron diffraction (LEED) and scanning tunneling microscopy (STM). For (1x1) TiO2, LEED analysis shows common ... -
Measurement of the single top quark cross section in the lepton plus jets final state in proton-antiproton collisions at a center of mass energy of 1.96 TeV using the CDF II detector.
(, 2013-05-15)We present a measurement of the single top quark cross section in the lepton plus jets final state using an integrated luminosity corresponding to 7.5/fb of collision data collected by the Collider Detector at Fermilab. ... -
Nanocluster defects and their properties on TiO2(110) and (001) surfaces.
(, 2012-11-29)TiO2(110) and (001) have been investigated by low energy electron diffraction (LEED) and scanning tunneling microscopy (STM). A nearly bulk-like (1 × 1) TiO2(110) was produced after cycles of Ar+ sputtering and surface ... -
Nanomanipulator perturbation of dust crystals in a GEC rf plasma cell.
(2010-10-08)The vast majority of observable matter is composed of complex plasma. Even with its prevalence, the interactions between the plasma's constituents are not fully understood. In many cases, clouds of dust grains from and can ... -
Orbifold branes in string theory and their applications to cosmology.
(, 2011-09-14)This dissertation contains two distinct compactification schemes of 10-dimensional string theory, as well as some of the implications of one of these schemes for string cosmology. The first half of this work begins with a ... -
Search for anomalous production of photon + jets + missing transverse energy in proton-antiproton collisions at a center of mass energy of 1.96 TeV using the CDF II detector.
(2011-05-12)A model-independent signature-based search for physics beyond the Standard Model is performed in the photon + jets + missing transverse energy channel in proton-antiproton collisions at a center of mass energy of 1.96 TeV ... -
Search for the Standard Model Higgs boson in the diphoton final state in proton-antiproton collisions at a center of mass energy of 1.96 TeV using the CDF II detector.
(, 2012-11-29)We present a search for the Standard Model Higgs boson decaying into a pair of photons produced in pp ̄ collisions with a center of mass energy of 1.96 TeV. The results are based on data corresponding to an integrated ... -
A search for the standard model Higgs boson produced in association with a W boson.
(2011-05-12)We present a search for a standard model Higgs boson produced in association with a W boson using data collected with the CDF II detector from proton/antiproton collisions at a center of mass energy of 1.96 TeV. The search ... -
Strange quark contribution to the nucleon.
(2007-02-07)The strangeness contribution to the electric and magnetic properties of the nucleon has been under investigation experimentally for many years. Lattice Quantum Chromodynamics (LQCD) gives theoretical predictions of these ... -
Studies on the missing energy measurement and supersymmetry search in 7 TeV proton-proton collisions.
(, 2012-11-29)The main theme of the research presented in this thesis is the search for Supersymmetry, one of the most likely and well-motivated extensions of the standard model of particle physics, in 7 TeV proton-proton collisions ... -
Surface embedded green function method applied to Ag(111).
(2010-10-08)Theoretical self-consistent calculations utilizing the Surface Embedded Green Function (SEGF) method have been performed on the Ag(111) surface. Analysis of the surface energetics reveal an energy minimum in the low ...