| Autor: |
Michele Arzano, Jerzy Kowalski-Glikman, Wojciech Wiślicki |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Physics Letters B, Vol 794, Iss , Pp 41-44 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/j.physletb.2019.05.025 |
| Popis: |
We show that deformed relativistic kinematics, expected to emerge in a flat-spacetime limit of quantum gravity, predicts different lifetimes for particles and their antiparticles. This phenomenon is a consequence of Planck-scale modifications of the action of discrete symmetries. In particular we focus on deformations of the action of CPT derived from the κ-Poincaré algebra, the most studied example of Planck-scale deformation of relativistic symmetries. Looking at lifetimes of muons and anti-muons we are able to derive an experimental bound on the deformation parameter of κ≳4×1014 GeV from measurements at the LHC. Such bound has the potential to reach the value of κ≳2×1016 GeV using measurements at the planned Future Circular Collider (FCC). Keywords: CPT symmetry, Quantum gravity, κ-deformation, Particle lifetime |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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Full Text from ScienceDirect