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Title:The brown muck of b^0 and b^0_s mixing: beyond the standard model
Author(s):Bouchard, Christopher
Director of Research:El-Khadra, Aida X.
Doctoral Committee Member(s):El-Khadra, Aida X.; Stack, John D.; Stone, Michael
Department / Program:Physics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):quantum chromodynamics (QCD)
lattice QCD (LQCD)
brown muck
B mixing
Bs mixing
neutral meson mixing
hadronic mixing matrix elements
mixing matrix elements
beyond the Standard Model (BSM)
Abstract:Standard Model contributions to neutral B meson mixing begin at the one loop level where they are further suppressed by a combination of the GIM mechanism and Cabibbo suppression. This combination makes B meson mixing a promising probe of new physics, where as yet undiscovered particles and/or interactions can participate in the virtual loops. Relating underlying interactions of the mixing process to experimental observation requires a precise calculation of the non-perturbative process of hadronization, characterized by hadronic mixing matrix elements. This thesis describes a calculation of the hadronic mixing matrix elements relevant to a large class of new physics models. The calculation is performed via lattice QCD using the MILC collaboration’s gauge configurations with 2 + 1 dynamical sea quarks.
Issue Date:2012-02-06
Genre:Dissertation / Thesis
Rights Information:Copyright 2011 Christopher Bouchard
Date Available in IDEALS:2012-02-06
Date Deposited:2011-12

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