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Constraints on discrete global symmetries in quantum gravity.
- Source :
- Journal of High Energy Physics; May2021, Vol. 2021 Issue 5, p1-34, 34p
- Publication Year :
- 2021
-
Abstract
- The question whether global symmetries can be realized in quantum-gravity-matter-systems has far-reaching phenomenological consequences. Here, we collect evidence that within an asymptotically safe context, discrete global symmetries of the form ℤ<subscript>n</subscript>, n > 4, cannot be realized in a near-perturbative regime. In contrast, an effective-field-theory approach to quantum gravity might feature such symmetries, providing a mechanism to generate mass hierarchies in the infrared without the need for additional fine-tuning. [ABSTRACT FROM AUTHOR]
- Subjects :
- DISCRETE symmetries
QUANTUM gravity
SYMMETRY
Subjects
Details
- Language :
- English
- ISSN :
- 11266708
- Volume :
- 2021
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Journal of High Energy Physics
- Publication Type :
- Academic Journal
- Accession number :
- 150984122
- Full Text :
- https://doi.org/10.1007/JHEP05(2021)036