Experimental bounds on deformed muon lifetime dilation

authored by

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

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.

External Organisation(s)

Universidade Federal da Paraiba
University of Bremen

Type

Article

Journal

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Volume

866

ISSN

0370-2693

Publication date

29.04.2025

Publication status

E-pub ahead of print

Peer reviewed

Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

Electronic version(s)

https://doi.org/10.1016/j.physletb.2025.139511 (Access: Open)