ELECTROWEAK THEORY OF ASSOCIATED STRANGENESS PRODUCTION VIA NEUTRINO-NUCLEON INTERACTION

Abstract

In this thesis, we present a fully relativistic description of associated production via NC neutrino-nucleon weak interaction. In the Lab frame where the target nucleon is at rest; the kinematics and dynamics of the process of interest were evaluated separately. It was shown that the norm squared invariant amplitude, which is proportional to the differential cross section, can be constructed as the contraction between the leptonic and hadronic tensors. In order to determine the eighteen unknown form factors parameterizing the hadronic vertex for the process, we used the Born term approximation that employs the SU(3) symmetry and Cabibbo V-A theory. Finally, the numerical analysis of the differential cross section was performed by using MatLab R2016a. In both angular and energy distributions, the s-channel was found to be dominant. Although the contributions of the t- and u-channels are negligible, their inclusion tend to slightly suppress the total differential cross section. The angular distribution was also shown to be forward-peaked, and hence the associated production can be treated as the fowrad scattering process