Work

Experimental bounds on deformed muon lifetime dilation

Year: 2025

Type: article

Abstract: We analyze Planck scale induced modifications of the relativistic time dilation using data from the Muon Storage Ring experiment at CERN. By examining the lifetimes of muons, we establish, for the first time, a constraint on such quantum gravity-inspired deformations using this channel. The magnitude of the effect indicates that the study of cosmic rays is a well suited arena for this scenario. We show, that the spectrum of muons would be significantly affected for particles at the PeV scale. Since this later observation of the effect of time dilation is more indirect compared to a direct lifetime measurement, we encourage to perform a high precision measurement of the muon lifetime as a function of the muon's energy.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2025.139511

Authors: Iarley P. Lobo, Christian Pfeifer, Pedro H. Morais

Institutions: Universidade Federal da Paraíba, University of Bremen

Language: English

Topic: Noncommutative and Quantum Gravity Theories

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: European Cooperation in Science and Technology, Deutsche Forschungsgemeinschaft, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico