[Flexiblesusy-commits] [FlexibleSUSY/FlexibleSUSY] 8d5085: Bugfix: correcting 4-loop beta function of the SM ...

[GitHub]

  Branch: refs/heads/development
  Home:   https://github.com/FlexibleSUSY/FlexibleSUSY
  Commit: 8d508521d32aa87220e4d034d1c03168e77241ad
      https://github.com/FlexibleSUSY/FlexibleSUSY/commit/8d508521d32aa87220e4d034d1c03168e77241ad
  Author: Alexander Voigt <Alexander.Voigt at physik.rwth-aachen.de>
  Date:   2018-05-24 (Thu, 24 May 2018)

  Changed paths:
    M meta/SM/beta_gt.m
    A meta/SM/beta_gt_4L.m
    A meta/SM/beta_lambda_4L.m

  Log Message:
  -----------
  Bugfix: correcting 4-loop beta function of the SM top Yukawa coupling

Note: The extra factor 2 comes from the fact that in Chetyrkin:2016ruf
the beta function is defined as

   beta = d yt / d log(mu^2) = 1/2 d yt / d log(mu)

Furthermore, there is a factor gt missing in the expression "betaytl4"
in the file ttp16_008.m, which is present in Eq.(3.5).

   https://www.ttp.kit.edu/Progdata/ttp16/ttp16-008/


  Commit: bd06e3d49f333ec44c6745e30df0e05b483d06d1
      https://github.com/FlexibleSUSY/FlexibleSUSY/commit/bd06e3d49f333ec44c6745e30df0e05b483d06d1
  Author: Alexander Voigt <Alexander.Voigt at physik.rwth-aachen.de>
  Date:   2018-05-24 (Thu, 24 May 2018)

  Changed paths:
    M ChangeLog

  Log Message:
  -----------
  update ChangeLog


  Commit: 6caabce9dec739d0da659b782aa950584be3e6d5
      https://github.com/FlexibleSUSY/FlexibleSUSY/commit/6caabce9dec739d0da659b782aa950584be3e6d5
  Author: Alexander Voigt <Alexander.Voigt at physik.rwth-aachen.de>
  Date:   2018-05-24 (Thu, 24 May 2018)

  Changed paths:
    M meta/WeinbergAngle.m

  Log Message:
  -----------
  throw exception if coupling is non-perturbative


Compare: https://github.com/FlexibleSUSY/FlexibleSUSY/compare/4c56526d8b11...6caabce9dec7
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