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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2867

Title: STUDIES ON B-MESON DECAYS IN THE FRAMEWOR K OF BETHE-SALPETER EQUATION(BSE)
Authors: Hluf, Negash
Advisors: Dr. S . Bhatnagar
Keywords: B-MESON DECAYS
BETHE-SALPETER
Copyright: Jul-2010
Date Added: 10-May-2012
Publisher: AAU
Abstract: In this thesis, we rst study the lagrangian formulation of gauge theories, QED, Yang- Mills theory and the Glashow-Weinberg-Salam model for Electroweak interaction. We then, we use the framework of Bethe-Salpeter equation (BSE) under Covariant Instan- taneous Ansatz (CIA) to calculate the leptonic decays of B-meson. The structure of hadron-quark vertex function 􀀀(^q) is obtained from BSE under CIA, while the structure of q qW􀀀 vertex is obtained from GWS model for Electroweak interactions. We derive for- mulas for the decay constant fB of B-meson. We obtain the numerical values of the decay constant, fB of the B-meson as well as its decay width. Then the results are compared with existing experimental results.
URI: http://hdl.handle.net/123456789/2867
Appears in:Thesis - Physics

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