Work

Searches for heavy neutral leptons at FCC-ee in final states including a muon

Year: 2025

Type: article

Abstract: The sensitivity of the CERN FCC-ee collider to the production of heavy neutral leptons (HNL) is investigated. The study focuses on a simplified model with a single low-mass HNL mixing with a muon, and addresses the fully leptonic and semileptonic decay modes of the HNL. Complete Monte Carlo analyses of signal and background based on a parametrised detector simulation are performed for the FCC-ee run at the Z pole, resulting in an estimate of the intervals of the mixing parameter for which the FCC-ee will have a 95% CL sensitivity as a function of the HNL mass.

Source: The European Physical Journal C

DOI: 10.1140/epjc/s10052-025-14749-y

Authors: L. Bellagamba, G. Polesello, N. Valle

Institutions: Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Istituto Nazionale di Fisica Nucleare, Sezione di Pavia

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: European Commission, Istituto Nazionale di Fisica Nucleare

Awards: Future Circular Collider Innovation Study, G434337789, Advancement and Innovation for Detectors at Accelerators