Search
Now showing items 21-30 of 70
Measurement of the ratios of the branching fractions [Beta](B⁰[sigma] --> D⁻[sigma][pi]⁺ [pi]⁺[pi]⁻)/[Beta](B⁰ --> D⁻[pi]⁺ [pi]⁺[pi]⁻) and [Beta](B⁰[sigma] --> D⁻[sigma][pi]⁺)/[Beta](B⁰ --> D⁻[pi]⁺ [pi]⁺[pi]⁻).
(Massachusetts Institute of Technology, 2007)
We present the measurement of the ratios of branching fractions B... to B..., and B... to B... We analyze data taken with the CDF II detector that corresponds to an integrated luminosity of 355 pb - 1 in pp collisions at ...
A search for Z = -1 dark matter annihilation products in cosmic rays with AMS-01
(Massachusetts Institute of Technology, 2007)
The majority of mass in the universe has not been observed optically and is termed dark matter. The supersymmetric neutralino provides an interesting dark matter candidate, which may self-annihilate in our galaxy, producing ...
Development of techniques for quantum-enhanced laser-interferometric gravitational-wave detectors
(Massachusetts Institute of Technology, 2007)
A detailed theoretical and experimental study of techniques necessary for quantum-enhanced laser- interferometric gravitational wave (GW) detectors was carried out. The basic theory of GWs and laser-interferometric GW ...
Observation of B⁰s - B⁻⁰s oscillations and the development and application of same-side-kaon flavor tagging
(Massachusetts Institute of Technology, 2007)
The search for flavor oscillations in the neutral Bs - B meson system constitutes a flagship analysis of the Tevatron proton-anti-proton collider physics program and an important probe for effects due to new physics beyond ...
Strongly-interacting fermions in an optical lattice
(Massachusetts Institute of Technology, 2007)
Two sets of studies are described in this thesis. The first describes studies conducted with sodium Bose-Einstein condensates (BEC) while the second focuses on the pairing of fermionic lithium-6 pairs in an optical lattice ...
X-ray spectroscopy of neutron star low-mass X-ray binaries
(Massachusetts Institute of Technology, 2007)
In this thesis, I present work spanning a variety of topics relating to neutron star lowmass X-ray binaries (LMXBs) and utilize spectral information from X-ray observations to further our understanding of these sources. ...
Analysis of B [sigma] flavor oscillations at CDF
(Massachusetts Institute of Technology, 2007)
The search for and the study of flavor oscillations in the neutral B,B, meson system is an experimentally challenging endeavor. This constitutes a flagship analysis of the Tevatron proton-antiproton collider physics program. ...
Gravitational lensing of quasars by edge-on spiral galaxies
(Massachusetts Institute of Technology, 2007)
In this thesis, I studied the lensed quasar CX2201-3201, which is lensed by an edge-on spiral galaxy. The unusually high tilt of the spiral galaxy provides us with a rare opportunity for mass modeling. In addition, the ...
Physical understanding and modeling of chemical mechanical planarization in dielectric materials
(Massachusetts Institute of Technology, 2007)
Chemical mechanical planarization (CMP) has become the enabling planarization technique of choice for current and emerging silicon integrated circuit (IC) fabrication processes. This work studies CMP in dielectric materials ...
The crystal structure of cholesterol helical ribbons
(Massachusetts Institute of Technology, 2007)
Helical ribbons form in a many multi-component solutions containing sterols similar to cholesterol, but remarkably, almost all the helices have a pitch angle of 11⁰ or 54⁰. The consistent pitch angle of the ribbons may be ...