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SARAH 3.0.39: Changelog
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Model files:
- Possibility to define electric charge of all particles in particles.m, e.g.
{Sd, {ElectriCharge -> -1/3,
... }}
This charge is used in the UFO, WHIZARD and SPheno (routine AlphaEwDR) output.
If no charge is defined, SARAH tries to get charge from the coupling to the photon.
This works usually as long as the gauge sector is not extended.
- munuSSM: basis vector of 'charginos' has been changed (now, first leptons, then wino and higgsino).
Thanks to Avelino Vicente
SPheno:
- The method to calculate the one-loop masses in SPheno has slightly changed: the one-loop corrected
parameters from the solution of the tadpole equations are no longer used for the vertices of
all other loop corrections. Only tree-level parameters enter all vertices.
Thanks to Werner Porod and Manuel Krauss for interesting discussion.
- SPheno output: check which parameters have to run up from MZ to MGUT improved (thanks to Diessner)
- SPheno output: usage fo GUT normalization generalized;
GUT normalization of hypercharge coupling (Sqrt(3/5)) no longer hardcoded.
- SPheno output: fix in BoundaryEW for models with R-parity violation.
- SPheno input: Renamed flag "QuadruPole" to "Quadruple"
- SPheno output: improved routine to create dyadic products
Lagrangian:
- Lagrangian: relative complex conjugation between soft-breaking mass terms of left and right handed fields.
(Right-handed fields have been changed)
- Changed GUT-normalization of off-diagonal gauge couplings:
Correct GUT normalization of gauge coupling gXgY is N_X and not sqrt(N_X N_Y) (Thanks to Laslo Reichert)
Misc:
- FeynArts output: order of fields in SSVV couplings changed to fit to standard FeynArts conventions.
- Tex output of mass matrices improved: written as matrix multiplication (sum over indices removed)
- UFO output: change of conventions for SU(3)-generators to fit to the UFO conventions
- CalcRGEs: solved problem with flag NoMatrixMultiplication for U(1) gauge couplings. Thanks to Gilbert Moultaka