Strange particle production via the weak interaction
Date
2009-03
Authors
Adera, Gashaw Bekele
Journal Title
Journal ISSN
Volume Title
Publisher
Stellenbosch : University of Stellenbosch
Abstract
In this thesis a general relativistic formalism for neutrino-induced weak production of strange
particles is presented. In our formalism it is shown that the differential cross section is
constructed as a contraction between a leptonic tensor and a hadronic tensor. The electroweak
theory of Glashow, Salam and Weinberg is used to calculate the leptonic tensor exactly. The
hadronic current is determined from the newly derived general form of the weak hadronic
current which is expressed in terms of eighteen invariant amplitudes that parametrize the
hadron vertex. The Born diagram is used to approximate the unknown hadronic vertex and
the numerical calculation is made by evaluating the tree diagrams in terms of standard weak
form factors and the strong coupling constants in the framework of the Cabibbo theory and
SU(3) symmetry. The investigation is made for charged current reactions in terms of the
angular distribution of the differential cross section with respect to the outgoing kaon angle
and the results are discussed.
Description
Thesis (MSc (Physics))--University of Stellenbosch, 2009.
Keywords
Dissertations -- Physics, Theses -- Physics