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Neutron-deuteron elastic scattering and three-nucleon force
(Massachusetts Institute of Technology, 2005)
The differential cross section for neutron-deuteron elastic scattering was measured at six angles over the center-of-mass angular range 65⁰ - 1300⁰ and incident neutron energies 140 - 240 MeV at the LANSCE/WNR facility of ...
Electron tunneling and spin relaxation in a lateral quantum dot
(Massachusetts Institute of Technology, 2008)
We report measurements that use real-time charge sensing to probe a single-electron lateral quantum dot. The charge sensor is a quantum point contact (QPC) adjacent to the dot and the sensitivity is comparable to other ...
The ground state of the spin-1/2 kagomé lattice antiferromagnet : neutron scattering studies of the zinc-paratacamite mineral family
(Massachusetts Institute of Technology, 2009)
The magnetic properties of the geometrically frustrated quantum magnets clinoatacamite, Cu2(OH)3Cl, and herbertsmithite, ZnCu3(OH)6Cl2, are studied by means of neutron scattering measurements as well as specific heat, ...
Density profiles of plasmas confined by the field of a Levitating Dipole Magnet
(Massachusetts Institute of Technology, 2009)
A 4-channel microwave interferometer (center frequency: 60 GHz) has been constructed to measure the density profiles of plasmas confined within the Levitated Dipole Experiment (LDX). LDX is the first and only experiment ...
Heavy quarks in effective field theories
(Massachusetts Institute of Technology, 2009)
Heavy quark physics serves as a probe to understand QCD, measure standard model parameters, and look for signs of new physics. We study several aspects of heavy quark systems in an effective field theory framework, including ...
Magnetic reconnection physics in the solar wind with Voyager 2
(Massachusetts Institute of Technology, 2009)
Magnetic reconnection is the process by which the magnetic topology evolves in collisionless plasmas. This phenomenon is fundamental to a broad range of astrophysical processes such as stellar flares, magnetospheric ...
Plasma stability in a dipole magnetic field
(Massachusetts Institute of Technology, 2001)
The MHD and kinetic stability of an axially symmetric plasma, confined by a poloidal magnetic field with closed lines, is considered. In such a system the stabilizing effects of plasma compression and magnetic field ...
Effective field theories for inclusive B decays
(Massachusetts Institute of Technology, 2006)
In this thesis, we study inclusive decays of the B meson. These allow one to determine CKM elements precisely and to search for physics beyond the Standard Model. We use the framework of effective field theories, in ...
The crystallography of three flavor quark matter
(Massachusetts Institute of Technology, 2007)
The nature of cold three-flavor quark matter at the large (but not asymptotic) densities relevant to neutron star phenomenology is not resolved. The gapless CFL phase, which was previously believed to have the lowest free ...
Studying coherence in ultra-cold atomic gases
(Massachusetts Institute of Technology, 2007)
This thesis will discuss the study of coherence properties of ultra-cold atomic gases. The atomic systems investigated include a thermal cloud of atoms, a Bose-Einstein condensate and a fermion pair condensate. In each ...