[Flexiblesusy-commits] [FlexibleSUSY/FlexibleSUSY] a4ce51: omit rhs CKM matrix factor

[GitHub]

  Branch: refs/heads/feature-ckm
  Home:   https://github.com/FlexibleSUSY/FlexibleSUSY
  Commit: a4ce511e90eee6117b0a65c0d636c940d82940d9
      https://github.com/FlexibleSUSY/FlexibleSUSY/commit/a4ce511e90eee6117b0a65c0d636c940d82940d9
  Author: Expander <Hole.destructor at gmx.de>
  Date:   2014-10-20 (Mon, 20 Oct 2014)

  Changed paths:
    M templates/two_scale_low_scale_constraint.cpp.in
    M test/test_MSSM_low_scale_constraint_flavour.cpp

  Log Message:
  -----------
  omit rhs CKM matrix factor

On 18.10.2014 19:22, jhyeon wrote:
> in the SM, right-handed quark rotation is unphysical.  In a
> supersymmetric model, right-handed quark rotation changes the
> misalignment between the quark and the squark mass eigenstates.
> This obviously has a physical effect if squark masses are
> non-universal at the scale where quark masses are diagonalized.  I
> was not sure whether right-handed quark rotation is physical or not
> with the CMSSM boundary condition which enforces universal squark
> masses but at a scale higher than the scale where the CKM matrix is
> evaluated.  What you said suggests that the right-handed quark
> rotation has a physical consequence.  In any case, we allow for a
> non-universal boundary condition via the model file.  Therefore, we
> should not hard-wire the low-energy Yukawa matrices since this would
> forbid the other potentially viable Yukawa matrices which are
> physically distinct from the current choice while correctly
> reproducing the CKM matrix.  Any pair of `Yu = Uu*Yu_diag*CKM*V` and
> `Yd = Ud*Yd_diag*V` for some unitary matrices `Uu`, `Ud`, `V` should
> be available to the user.  What do you think?  BTW, how do you
> compare the Yukawa couplings?  Is there a component of the test
> suite for this?