La dispersión elástica coherente neutrinonúcleo (CEVNS) como prueba del modelo estándar.

Abstract

In the present work, the study of the differential effective section (CEvNS) was carried out, a process in which a neutrino interacts with a nucleus as a whole, that is, it does not see its nuclear composition. In this analysis reactor antineutrinos were used, since their energy is in the low energy regime (2 − 8MeV ). The calculation of the differential effective section of said process was carried out to later use it in the design of a program in the programming language Fortran, this program allowed the calculation of the number of events that can occur for dispersion in a certain range of energies, these data were compared with the data expected to be produced by the CONUS experiment through a statistical analysis χ2 that was also calculated through the implementation of numerical codes. Finally, the restrictions to the values of the weak mixing angle sin2 θW at low energies were obtained.