12–14 Jun 2024
ADEIT Salón de actos
Europe/Madrid timezone

EFT analysis of the COHERENT experiment with right handed neutrinos

12 Jun 2024, 18:10
5m
ADEIT Salón de actos

ADEIT Salón de actos

Plaza Virgen de la Paz, 3. 46001 Valencia

Speaker

Sergio de la Cruz (IFIC (CSIC/UV))

Description

Using an effective field theory approach, we study coherent neutrino scattering on nuclei, in the setup pertinent to the COHERENT experiment. We include non-standard effects in both neutrino production and detection, with an arbitrary flavor structure and all leading Wilson coefficients simultaneously present. We add to previous work with the same formalism the presence of Dirac right-handed neutrinos and all the new operators that this implies. A concise description of the COHERENT event rate is obtained by introducing twelve generalized weak charges that can be associated (in a sense) with the production and scattering of $\nu_e$, $\nu_\mu$ and $\bar{\nu}_\mu$ on the nuclear target and the nuclear currents in detection. Our results present an explicit form of the new charges in terms of all Wilson coefficients.

Presentation materials