Neutrino-Electron and Antineutrino-Electron Scattering

Abstract

In this project the cross-section of neutrino electron and antineutrino-electron scattering is calculated using two models: Fermi effective theory and the standard model in particle physics, that unify between the strong and the electroweak forces. A substantial difference between the two models is found that is the cross-section in Fermi theory is proportional to the center of mass energy (S), while in the Standard model the cross section is inversely proportional to (S). Consequently at high energies (S> m_w) the Fermi theory break down and we cannot trust calculations of the cross-section using this theory, therefore, it is the most to use the theory of standard model when dealing with higher energies. Furthermore we find that the cross section of anti-neutrino is 1/3 of that of neutrino cross-section for both models.