Neutrino nonstandard interactions and lepton flavor universality violation at SND@LHC via charm production
Year: 2024
Type: article
Abstract: A bstract In this work, we explore the effect of neutrino nonstandard interactions (NSI) involving the charm quark at SND@LHC. Using an effective description of new physics in terms of four-fermion operators involving a charm quark, we constrain the Wilson coefficients of the effective interaction from two and three-body charmed meson decays. In our fit, we include charmed meson decays not only to pseudoscalar final states but also to vector final states and include decays to the η and η ′ final states. We also consider constraints from charmed baryon decays. We then study the effect of new physics in neutrino scattering processes, involving charm production at SND@LHC, for various benchmark new physics couplings obtained from the low energy fits. Finally, we also study the effects of lepton universality violation (LUV) assuming that the new physics coupling is not lepton universal.
Source: Journal of High Energy Physics
Authors: Bhubanjyoti Bhattacharya, Alakabha Datta, Elena Graverini, Lopamudra Mukherjee, Divya Sachdeva, John Waite
Institutions: Lawrence Technological University, University of Mississippi, University of Pisa, École Polytechnique Fédérale de Lausanne, Nankai University, Centre National de la Recherche Scientifique, Université Paris Cité, Université Paris Sciences et Lettres, Sorbonne Université, Indian Institute of Technology Hyderabad, Morehead State University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
Awards: G1330139790, RUI: Discovering New Sources of CP Violation in Flavor Phenomenology, From beauty to strangeness: a flavour approach to probing new interactions, G3398237449, G434337789, G4689434848, Kavli Institute for Theoretical Physics, A Bottom Up Approach to New Physics in Flavor Phenomenology
OpenAlex ID: W4405972298