2012

Yukawa coupling beta-functions in the Standard Model at three loops

Bednyakov, A. V., Pikelner, A. F., Velizhanin, V. N.

Understand

We present the results for three-loop beta-functions for Yukawa couplings of heavy Standard Model fermions calculated within the unbroken phase of the model.

  • The calculation is carried out with the help of the MINCER program in a general linear gauge, and the final result is independent of the gauge-fixing parameters.
  • In order to calculate three-point functions, we made use of infrared rearrangement (IRR) trick.
  • Due to the chiral structure of the SM a careful treatment of loops with fermions is required to perform the calculation.

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