Work

Inclusive quasielastic neutrino and antineutrino scattering off nuclei within the Standard Model and beyond

Year: 2025

Type: article

Abstract: We derive fully general expressions for the inclusive (anti-)neutrino-induced nuclear quasielastic production of a strange or charmed baryon Y , considering all dimension-six new-physics operators relevant to the semileptonic q → q ′ ℓ ν ℓ transition with both left- and right-handed neutrino fields. We illustrate the formalism by applying it to the Λ c production in neutrino-nucleus scattering. The nuclear response is computed using a state-of-the-art spectral function, based on realistic nuclear many-body wave functions obtained via the coupled-cluster method and a nuclear Hamiltonian derived from chiral effective field theory. We also highlight the role played by the final state interactions between the produced Y hyperon and the residual nuclear system, which can obscure potential new physics signals in this (anti-)neutrino–nucleus reaction. Our results improve upon previous studies that neglected nuclear corrections and uncertainties—effects we show to be comparable to, or even larger than, those expected from new physics.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/ll9y-1v4z

Authors: E. Hernández, J. Nieves, J. E. Sobczyk

Institutions: Universidad de Salamanca, Consejo Superior de Investigaciones Científicas, Instituto de Física Corpuscular, Johannes Gutenberg University Mainz, Chalmers University of Technology

Language: English

Topic: Neutrino Physics Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid