Browsing Physics  Bachelor's degree by Title
Now showing items 358377 of 488

Relativistic quantum field in theoretical physics
(Massachusetts Institute of Technology, 2015)Quantum field theory is the most welldeveloped tool in theoretical physics to study about the dynamics at microscopic scales, with particles and quantum behaviors. In this thesis I'll review about the construction of ... 
Resolution effects in the hybrid strong/weak coupling model
(Massachusetts Institute of Technology, 2017)Within the context of a hybrid strong/weak coupling model of jet quenching, we study the consequences of the fact that the plasma produced in a heavy ion collision cannot resolve the substructure of a collimated parton ... 
Results from five Chandra observations of the normal galaxy NGC 3877
(Massachusetts Institute of Technology, 2004)We present the results of five Chandra observations of the normal galaxy NGC 3877. A total of 27 Xray sources are detected, including SN 1998S. We find 15 sources to be variable during the 646day period covered by the ... 
Rigorous fit to the peak region of the thrust distribution
(Massachusetts Institute of Technology, 2014)We continue the work of Abbate et al. in [1], in which a factorization formula for the thrust distribution in electronpositron collisions was developed in the framework of softcollinear effective theory. We extend the ... 
Robustness and infrared sensitivity of various observables in the application of AdS/CFT to heavy ion physics
(Massachusetts Institute of Technology, 2008)We investigate the robustness with respect to the introduction of nonconformality of five properties of strongly coupled plasmas that have been calculated in K = 4 supersymmetric YangMills (SYM) theory at nonzero temperature, ... 
The role of eddies in buoyancy flux
(Massachusetts Institute of Technology, 2001)This thesis explores the role of eddies in determining the stratification of the ocean through a laboratory experiment. The experiment uses a dualtank apparatus, with a smaller tank sitting inside the larger tank. Both ... 
Salty development of an optical photoresist
(Massachusetts Institute of Technology, 2008)In this series of experiments, we add salt to a photoresist developer and observe the effect on photoresist contrast. In order to measure contrast, we designed an antireflection coating stack to reduce reflections between ... 
Scanning tunneling spectroscopy of leadsubstituted bismuth strontium copper oxide
(Massachusetts Institute of Technology, 2007)The holedoped cuprate Bi ... is doped with lead to the solubility limit of x = 0.38 and studied using STM/STS in the overdoped regime where Tc < 2K. Despite the high lead content, residual supermodulations are observed ... 
Scattering and mesons
(Massachusetts Institute of Technology, 2006)We present the Pmatrix, an alternative method to parameterize the Smatrix, which is particularly useful for low energy mesonmeson scattering. We discuss its basic properties and use it to analyze the isospin 0 and 2 ... 
The scattering and shrinking of a Gaussian wave packet by delta function potentials
(Massachusetts Institute of Technology, 2012)In this thesis, we wish to test the hypothesis that scattering by a random potential causes localization of wave functions, and that this localization is governed by the Born postulate of quantum mechanics. We begin with ... 
Scattering properties of polyacrylamide gels and their relation to protein electrophoretic migration
(Massachusetts Institute of Technology, 1994) 
Search for evidence of cosmic ray acceleration by supernova Remnant Kes 41 using the Fermi LAT
(Massachusetts Institute of Technology, 2013)The analysis presented in this paper incorporated photon events received during the full run time of the Fermi Gamma Space Telescope (FGST) Large Area Telescope (LAT) to date. By studying the [gamma]y emission of the ... 
Search for Higgs to invisible decays in vector boson fusion production
(Massachusetts Institute of Technology, 2017)A search for invisibly decaying Higgs bosons is performed using the vector boson fusion production (VBF) mode. This search was conducted using Run 2 data, collected by the CMS detector at the LHC in 2016 at a center of ... 
The search for orbital decay in hot Jupiters
(Massachusetts Institute of Technology, 2018)We summarize our results, so far, in the search for orbital decay in exoplanets. Orbital decay is the gradual shrinkage of the planetary orbit due to tidal dissipation. We ranked currently known exoplanetary systems according ... 
Search for preexisting Delta states at BLAST from ²H(e,e'[Delta]⁺⁺
(Massachusetts Institute of Technology, 2006)At the MITBates Linear Accelerator Center a comprehensive study of lowQ2 spindependent electron scattering from deuterium has been carried out using the Bates Large Acceptance Spectrometer Toroid (BLAST). This experiment ... 
Search for rare events in [the square root of sigma nu nu] = 200 GeV Au+Au PHOBOS data
(Massachusetts Institute of Technology, 2009)In this analysis, we set an upper bound on the rate of rare events: events whose dN/dn distribution deviates more than statistically from the ensemble average dN/dn distribution for s [the square root of sigma nu nu] = 200 ... 
Search for the production of quarkgluon plasma in e+e collisions at [square root of] s = 91.2 GeV with Archived ALEPH LEP1 data
(Massachusetts Institute of Technology, 2019)Measurements of twoparticle angular correlations for charged particles emitted in e+ e collisions at a centerofmass energy of 91 GeV are presented. The archived data are collected with the ALEPH detector at LEP. The ... 
Search for the standard model Higgs Boson in the Z gamma channel
(Massachusetts Institute of Technology, 2013)The Higgs decay into a photon and a Z boson, with the Z boson decaying into an electronpositron pair (electron channel) or muonantimuon pair (muon channel), allows for accurate reconstructions of the Higgs boson mass and ... 
Second order critical point in QCD phase diagram
(Massachusetts Institute of Technology, 2009)In this thesis I explore the theoretical model based on Asakawa and Nonaka's idea[l]. I start by arguing that the critical point of the QCD phase diagram is second order and belongs to the three dimensional Ising model ... 
Selfadjoint extensions to the Dirac Coulomb Hamiltonian
(Massachusetts Institute of Technology, 2010)The Dirac equation is the relativistic generalization of the Schrödinger equation for spin 1/2 particles. It is written in the form ihc ihac OXIa+t' Omc 29 = iho (1.1) where V) is a four component Dirac spinor and the ...