Evolution of the gauge couplings and Weinberg angle in 5-dimensions for an SU(5) and flipped SU(5) gauge group

International Workshop on Discovery Physics at the LHC

Khojali, Mohammed Omer^1 ; Cornell, A.S.^1 ; Deandrea, Aldo^2,3 ; Cacciapaglia, Giacomo^2,3

National Institute for Theoretical Physics, School of Physics, University of the Witwatersrand, Wits

2050, South Africa^1

Universite de Lyon, Lyon

F-69622, France^2

Universite Lyon 1, CNRS/IN2P3, UMR5822 IPNL, Villeurbanne Cedex

F-69622, France^3

关键词: Gauge couplings;    Gauge group;    Gauge symmetries;    Gauge theory;    Loop level;    Lower energies;    Matter field;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/878/1/012024/pdf
DOI  :  10.1088/1742-6596/878/1/012024

来源: IOP

【 摘 要 】

We explicitly test, in a simplified 5-dimensional model with SU(5) and SU(5) × U(1)′ gauge symmetries, the evolution of the gauge couplings. We assume that all the matter fields are propagating in the bulk, and consider orbifolds based on Abelian discrete groups which lead to 5-dimensional gauge theories compactified on an S1/Z2. The gauge couplings evolution is derived at one-loop level and used to test the impact on lower energy observables, in particular the Weinberg angle.