Electronic Theses and Dissertations

Date of Award


Document Type


Degree Name

Ph.D. in Physics


Physics and Astronomy

First Advisor

Alakabha Datta

Second Advisor

Donald Summers

Third Advisor

Hailin Sang

Relational Format



The kinematic and angular distributions are calculated for the decay Λ b → Λclν l. Deviations from the standard model are expected given the apparent lepton flavor violation in the process B → D(*)+ τ – ντ. Including these measured deviations from the SM, the upper and lower bounds for R Λb = B(Λ b → Λcτ ντ) / B(Λ b → Λcl νl) are calculated along with other observables for a variety of new physics Lorentz structures. Distributions are also calculated for H → W –W+*(or H +*) → τ–ν ττ+ντ via Type II and leptophilic 2HDM’s. Although, the Higgs was found at the LHC in 2012, the question remains whether it is of the SM variety. A MadGraph simulation is performed confirming the dihedral distribution calculation given the experimentally determined uncertainties in the Higgs’ couplings. The density matrix method and helicity formalism technique are employed for deriving these distributions.

Included in

Physics Commons



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