Browsing PhD Dissertations - DO NOT EDIT by Title
Now showing items 74-93 of 104
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Quantum Modeling Of Dark Matter In Galactic Halos
(Physics, 2013-03-20)Eighty years after its initial discovery, the nature of dark matter remains a mystery. Contrary to observational evidence, simulations of dark matter halos predict cuspy density profiles and an abundant population of dwarf ... -
The Role Of The Y-component Of The Interplanetary Magnetic Field In Transpolar Saturation And Ring Current Response As Found In Data And Simulation
(Physics, 2010-07-19)Energy is transferred into the magnetosphere of Earth through merging of magnetic fields (Dungey cycle and lobe cell convection) and through momentum transfer across the magnetopause (viscous interactions). These processes ... -
SCATTER CORRECTION AND 4D RECONSTRUCTION OF CONE BEAM COMPUTED TOMOGRAPHY (CBCT) WITH A MOVING BLOCKER
(2018-08-08)Come-beam computed tomography (CBCT) is being widely used as an image guidance tool in radiation therapy nowadays. The quality of CBCT image is important to localize and delineate the tumor and to define relevant volumes ... -
Search For A Supersymmetric Partner To The Top Quark Using A Multivariate Analysis Technique.
Supersymmetry (SUSY) is an extension to the Standard Model (SM) which introduces supersymmetric partners of the known fermions and bosons. Top squark (stop) searches are a natural extension of inclusive SUSY searches at ... -
Search For Standard Model Higgs In Two Photon Final State At Atlas
(Physics, 2010-11-01)The Standard Model of particle physics describes very precisely the nuclear strong and weak forces and the eletromagnetic interaction, by the exchange of vector bosons. It also describes all matter as composed of quarks ... -
Search For Supersymmetry In Dijet And Multijet Channels And Soft QCD Measurements Using The ATLAS Detector At The Large Hadron Collider
(Physics, 2011-03-03)The ATLAS experiment at the CERN Large Hadron Collider (LHC) has collected a substantial amount of data to understand the Standard Model of particle physics at higher than previous center of mass energy available and to ... -
A Search For The Higgs Boson In Its Associated Production With A W Vector Boson in p¯p Collisions at √s = 1.96 TeV
(Physics, 2008-04-22)We present the results of a search for the Standard Model Higgs boson in its associated production with a W vector boson in p¯p collisions at √s = 1.96 TeV using the complete Run IIA dataset with an integrated luminosity ... -
Search For The Standard Model Higgs Boson In eτ Final States
(Physics, 2013-07-22)Presented in this dissertation is a search for the standard model (SM) Higgs boson using the DØ detector at Fermilab in Batavia, IL. The SM is a fantastically accurate theory describing the fundamental interactions and ... -
Searches for Supersymmetric Particles with the ATLAS Detector using Boosted Decay Tree Topologies
(2016-08-05)The existence of a scalar Higgs particle poses a challenge to the Standard Model through an unnatural hierarchy problem with quadratic divergence. A supersymmetric framework, proposing heavy partners to every Standard Model ... -
Searches For The Exclusive Higgs and the Charged Higgs Bosons with the ATLAS Detector at the LHC
(2016-12-06)In this thesis, searches for the exclusive Standard Model (SM) and charged hMSSM Higgs bosons are performed. While observations of the SM Higgs boson in 2012 by ATLAS and CMS collaborations were ground-breaking, several ... -
Searching for a Pair-Produced Supersymmetric Top Partner Using Recursive Jigsaw Variables and Boosted Decision Trees with 139 fb⁻¹ of Data From the ATLAS Detector
(2020-07-21)The Standard Model of Particle Physics is the most comprehensive theory describing how fundamental particles and three of the four fundamental forces are related. However, the Standard Model is known to be an incomplete ... -
Selected Studies Of Celestial Dynamics And Habitability Of Extra Solar Planetary Systems
(Physics, 2013-03-20)Planetary science in various forms has become interwoven into human culture during all of known human history. The need and desire to expand our horizons has brought humans from basic forms of observation to the development ... -
Selected Studies Of Orbital Stability And Habitability In Star-planet Systems
(Physics, 2011-03-03)The study of planets remaining in orbit around one star with another starinterfering is an important topic of orbital mechanics and astrobiology. The onset of instability for a planet which is part of a stellar binary ... -
Self-Consistent Effects of the Recirculating Plasmapshere on the Development of Storm Time Dynamics in the Inner Magnetosphere.
(2023-06-07)The near Earth space environment is a highly coupled system. The Interplanetary Magnetic Field (IMF) interacts with the magnetosphere in myriad ways depend on the orientation of the IMF to the magnetosphere. The magnetic ... -
Semi-empirical Studies Of Solar Supergranulation And Related Phenomena
(Physics, 2008-09-17)In recent years, solar observations have moved from ground-based telescopes to observatories on Earth orbiting satellites, such as SOHO. They provide us with a clear and uninterrupted view of the solar disk. One instrument ... -
Silicon Carbide At Nanoscale: Finite Single-walled To "infinite" Multi-walled Tubes
(Physics, 2013-03-20)A systematic ab initio study of silicon carbide (SiC) nanostructures, especially finite single-walled, infinite double- and multi-walled nanotubes and nanocones is presented. Electronic and structural properties of all ... -
Simulations Of High-latitude Ionosphere-magnetosphere region plasma density structures and the Alfvén waves effects
(Physics, 2009-09-16)O+ density structures in the polar cap ionosphere-magnetosphere region near 6000 km altitude have been observed with numerous spacecraft, with O+ densities ranging from above 10 cm-3 to lower than 0.01 cm-3. Regions with ... -
Strong Constraints on New Physics from the IceCube South Pole Neutrino Observatory
(2022-12-12)The IceCube Neutrino Observatory, a gigaton-scale ice Cherenkov detector located deep within the Antarctic glacier, has detected hundreds of thousands of atmospheric neutrinos at energies from a few GeV to 100 TeV. Above ... -
Study Of Oxide Surfaces Using Time Of Flight Positron Annihilation Induced Auger Electron Spectroscopy
(Physics, 2007-08-23)Transition metal oxides (TMOs) exhibit a rich collection of interesting and intriguing properties which can be used for wide variety of applications. In this dissertation, I will discuss the first PAES measurements on ... -
A Study Of The Viscous Interaction Between The Solar Wind And Earth's Magnetosphere Using An MHD Simulation
(Physics, 2012-07-25)The solar wind interacts with Earth's magnetosphere largely through magnetic reconnection and a “viscous-like” interaction that is not fully understood. The ionospheric cross-polar cap potential (ΦPC) component due to ...