Work

Probing light sterile neutrinos in left-right symmetric models with displaced vertices and neutrinoless double beta decay

Year: 2025

Type: article

Abstract: A bstract An investigation of relatively light (GeV-scale), long-lived right-handed neutrinos is performed within minimal left-right symmetric models using the neutrino-extended Standard Model Effective Field Theory framework. Light sterile neutrinos can be produced through rare decays of kaons, D -mesons, and B -mesons at the Large Hadron Collider (LHC) and the Long-Baseline Neutrino Facility (LBNF) of Fermilab. Their decays could result in displaced vertices, which can be reconstructed. By performing Monte-Carlo simulations, we assess the sensitivities of the future LHC far-detector experiments ANUBIS, CODEX-b, FACET, FASER(2), MoEDAL-MAPP1(2), MATHUSLA, the recently approved beam-dump experiment SHiP, and the upcoming neutrino experiment DUNE at the LBNF, to the right-handed gauge-boson mass $$ {M}_{W_R} $$ M W R as functions of neutrino masses. We find that DUNE and SHiP could be sensitive to right-handed gauge-boson masses up to ~ 25 TeV. We compare this reach to indirect searches such as neutrinoless double beta decay, finding that displaced-vertex searches are very competitive.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep04(2025)007

Authors: Jordy de Vries, Herbi K. Dreiner, Jelle Groot, Julian Y. Günther, Zeren Simon Wang

Institutions: National Institute for Subatomic Physics, University of Amsterdam, University of Bonn, Hefei University of Technology

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Deutsche Forschungsgemeinschaft, Nederlandse Organisatie voor Wetenschappelijk Onderzoek

Awards: G5295195422, The Little Neutral Particle that Could