Speaker
Orlando L. G. Peres
Description
Since neutrino oscillation was observed, several experiments have been built to measure its parameters. NOVA and T2K are two long-baseline experiments dedicated to measuring mainly the mixing angle 2-3 and CP phase. However, there is a tension in current data. The T2K allowed region is in conflict with the region allowed by NOVA. We propose a nonstandard charged current interaction (CC-NSI) in neutrino production to relieve this tension. The CC-NSI is computed through quantum field theory formalism, where we derive perturbative analytical formulae considering CC-NSI in the pion decay. We can alleviate the tension with a coupling of size of mili Fermi constant.
Authors
Mr
Edson Souza
(UNICAMP)
Dr
Fernanda Rodrigues
(UNICAMP)
Orlando L. G. Peres
Dr
Pedro Pasquini
(Tokyo University)
Dr
Rafaela Rossi
(UNICAMP)
Co-author
Dr
Adriano Cherchiglia
(UNICAMP)