We show that the regularity of the gravitational metric tensor cannot be lifted from C0,1 to C1,1 by any C 1,1 coordinate transformation in a neighborhood of a point of shock wave interaction in General Relativity, without forcing the determinant of the metric tensor to vanish a…
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This thesis has two parts with different topics in particle physics. In part I, we consider various linear sigma models and their applications to scalar mesons. It is shown that the tree amplitude for ππ scattering in the minimal linear sigma model has an exact expression which …
In this thesis we consider three topics: the Penrose inequality (PI), polymer corrected gravitational collapse, and zero mode excitations in a RandallSundrum-2 (RS2) cosmological braneworld model. In chapter 2, we attempt to construct a counterexample to the PI using prolate sph…
The aim of this work is to consider the recently introduced ten dimensional Superstring theories and, by considering the low energy field theory limit, consider possible compactification schemes where the original ten dimensions split up into four observed space time dimensions …
In this thesis, I study the localized surface plasmon resonance phenomenon in dielectrically coated, closely-spaced gold nanoparticles. I examine the effect of a dielectric coating (that models the sensing of a biomolecular analyte layer) on the optical absorption of these parti…
In this thesis some equilibrium and non-equilibrium statistical methods are implied on two different versions of non-perturbative quantum gravity. Firstly, we report a novel statistical mechanics in which a class of evolutionary maps act on trivalent spin network in randomly cho…
In this thesis we analyze the phenomenology of a particular class of models which are an extension of the Standard Model of particle physics, and go by the name of warped extra dimensions. We show how this very simple framework, which is motivated by trying to find a solution to…
We argue that a theoretical upper bound exists on the cutoff of any effective theory that describes an electromagnetically interacting massive higher spin field in at space. The cutoff is a simple function of the particle's mass, spin and electric charge, and cannot be arbitrari…
Location, orbit and energy of a meteoroid impacting the moon during the Lunar Eclipse of January 21, 2019 During the total lunar eclipse of January 21, 2019 at least two meteoroids impacted the moon producing visible flash lights on the near side. One of the impacts occurred on …
Relativistic heavy-ion collision experiments are currently the only controlled way to generate and study matter in the most extreme temperatures (T ~10e+12 K). At these temperatures matter undergoes a phase transition to an exotic phase of matter called the quark-gluon plasma (Q…
The interaction of uranium dioxide (UO2 ) with environmental elements occurs at its exposed surface and a fundamental understanding of this interaction process begins at the atomic scale. In this regard, atomic scale modeling of the properties of clean and adsorbate-covered uran…
Plutonium (Pu) metal is highly reactive toward environmental gases and corrodes at a high rate. Due to this inevitable process, containers used to store Pu-based materials may experience catastrophic failure, subsequently releasing Pu particulates into the environment. Such inte…
This analysis measured the entire ttbar cross section through the specific decay channel to a tau, tau neutrino and four quark jets utilizing the full 2011 ATLAS collected data sample of 4.6fb-1 . Measurement was achieved by creating templates based on Monte Carlo samples for th…
Organic and organometallic electronic materials continue to attract considerable attention among researchers due to their cost effectiveness, high flexibility, low temperature processing conditions and the continuous emergence of new semiconducting materials with tailored electr…
The optical pitch polishing process has been used over 300 years to obtain high quality optical surface finish with little subsurface damage. A pitch tool consists of a metal platen coated with a layer of polishing pitch whereby pitch is a highly viscoelastic material. In polish…
The behavior of polarized dipolar Bose-Einstein condensates (BECs) in a harmonic trap has been extensively studied in the mean-field approximation. Mean-field studies show that, in contrast to s-wave interacting BECs, both the mechanical and dynamical behaviors of dipolar BECs d…