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Fermion flavour observables : renormalisation invariants and model building using discrete symmetries
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Rama, Krishnan (2012) Fermion flavour observables : renormalisation invariants and model building using discrete symmetries. PhD thesis, University of Warwick.
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WRAP_THESIS_Rama_2012.pdf - Submitted Version Download (5Mb) | Preview |
Official URL: http://webcat.warwick.ac.uk/record=b2683160~S1
Abstract
We very briefly review the current status of flavour physics with much of the
emphasis on the experimental and the theoretical aspects of neutrino oscillations.
Later we move on to study flavour symmetric constraints among observables like the
Koide formula and present a novel speculation in this context. Our research on the
renormalisation evolution of flavour symmetric observables leads us to the discovery
of exact one-loop evolution invariants in the Standard Model. Then we shift our
attention towards model building. We construct a model based on the discrete
group C3 x C3 x C3 and successfully describe the flavour physics in the leptonic
sector including the recent observation of non-zero mixing angle 013. Here both
the charged-lepton and the neutrino mass matrices have a common circulant-plusdiagonal
form. Later we use the previously published “Simplest Neutrino" texture
as the starting point to construct another model based on the discrete group S4.
We redefine the flavour basis in a non-standard way and use the “u-t" rotated basis
of S4 in model building. Like in the previous model, here also we use the recent
experimental data for fitting and make predictions.
Item Type: | Thesis (PhD) | ||||
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Subjects: | Q Science > QA Mathematics | ||||
Library of Congress Subject Headings (LCSH): | Fermions, Particles (Nuclear physics), Quantum flavor dynamics, Discrete groups, Mathematical models, Renormalization (Physics) | ||||
Official Date: | October 2012 | ||||
Dates: |
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Institution: | University of Warwick | ||||
Theses Department: | Department of Physics | ||||
Thesis Type: | PhD | ||||
Publication Status: | Unpublished | ||||
Supervisor(s)/Advisor: | Harrison, P. F.; Murray, Bill | ||||
Sponsors: | University of Warwick; Rutherford Appleton Laboratory | ||||
Extent: | ix, 116 leaves. | ||||
Language: | eng |
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