Two-loop renormalisation in UED models

International Workshop on Discovery Physics at the LHC

Abdalgabar, Ammar^1 ; Cornell, A.S.^1

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

2050, South Africa^1

关键词: Evolution equations;    Limiting case;    Localised;    Loop level;    Matter field;    Space time;    Yukawa couplings;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/623/1/012001/pdf
DOI  :  10.1088/1742-6596/623/1/012001

来源: IOP

【 摘 要 】

The evolution equations of the gauge and Yukawa couplings are derived for the two-loop renormalisation group equations in a five-dimensional SM compactified on a S1/Z2to yield standard four space-time dimensions. Different possibilities can be discussed, however, we shall consider the limiting case in which all matter fields are localised on the brane. We will compare our two-loop results to the results found at one-loop level, and investigate the evolution of sin2θWin this scenario also.