Work

Displaced searches for Axion-Like Particles and Heavy Neutral Leptons at Mu3e

Year: 2025

Type: article

Abstract: A bstract We present strategies for the Mu3e experiment to search for light, weakly coupled particles produced in rare muon decays, focusing on displaced e + e − decays within the hollow target. In most scenarios the backgrounds can be fully suppressed with a suitable set of cuts. We furthermore quantify the interplay between displaced and prompt searches at Mu3e and existing constraints, showing how Mu3e has a unique opportunity to probe unexplored parameter space.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep06(2025)189

Authors: Simon Knapen, Toby Opferkuch, Diego Redigolo, Michele Tammaro

Institutions: Lawrence Berkeley National Laboratory, Scuola Internazionale Superiore di Studi Avanzati, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Istituto Nazionale di Fisica Nucleare, Sezione di Firenze

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