Oct 23 – 27, 2023
Istituto Veneto di Scienze, Lettere ed Arti
Europe/Rome timezone
opening day available in streaming on the YouTube channel of the Physics and Astronomy Dpt. of the University of Padova: https://youtu.be/t_9s2ALOFGQ

Global constraints on non-standard neutrino interactions with quarks and electrons

Oct 25, 2023, 5:20 PM
20m
Palazzo Loredan,Sala delle Adunanze (Istituto Veneto di Scienze, Lettere ed Arti)

Palazzo Loredan,Sala delle Adunanze

Istituto Veneto di Scienze, Lettere ed Arti

Contributed Parallel Talk Neutrino Theory & Cosmology Neutrino Theory & Cosmology

Speaker

Salvador Urrea González (IFIC, University of Valencia)

Description

We derive new constraints on effective four-fermion neutrino non-standard interactions with both quarks and electrons. This is done through the global analysis of neutrino oscillation data and measurements of coherent elastic neutrino-nucleus scattering (CEvNS) obtained with different nuclei. In doing so, we include not only the effects of new physics on neutrino propagation but also on the detection cross section in neutrino experiments which are sensitive to the new physics. We consider both vector and axial-vector neutral-current neutrino interactions and, for each case, we include simultaneously all allowed effective operators in flavour space. To this end, we use the most general parametrization for their Wilson coefficients under the assumption that their neutrino flavour structure is independent of the charged fermion participating in the interaction. The status of the LMA-D solution is assessed for the first time in the case of new interactions taking place simultaneously with up quarks, down quarks, and electrons. One of the main results of our work are the presently allowed regions for the effective combinations of non-standard neutrino couplings, relevant for long-baseline and atmospheric neutrino oscillation experiments.

Primary author

Salvador Urrea González (IFIC, University of Valencia)

Presentation materials