Abstract
I discuss the matching relations for the running renormalizable parameters when the heavy particles (top quark, Higgs scalar, and vector bosons) are simultaneously decoupled from the standard model. The complete two-loop-order matching for the electromagnetic coupling and all light fermion masses is obtained, augmenting existing results at four-loop order in pure QCD and in complete two-loop order for the strong coupling. I also review the further sequential decouplings of the lighter fermions (bottom quark, tau lepton, and charm quark) from the low-energy effective theory.
- Received 17 December 2018
DOI:https://doi.org/10.1103/PhysRevD.99.033007
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society