Home of FeynHiggs
FeynHiggs is a Fortran code for the
(diagrammatic) calculation of the masses, mixings and much more of the
Higgs bosons in the MSSM with real/complex parameters at the highest
level of accuracy.
Quick links: FeynHiggs
Newest version: FeynHiggs2.14.3-beta
To upgrade from FeynHiggs2.13.0 to
FeynHiggs2.14.0 or higher you have to adjust
To upgrade from FeynHiggs2.12.2 to
FeynHiggs2.13.0 or higher you have to adjust FHSetSMPara, and if
used also FHGetPara and/or FHConstraints (and
possibly use the new
To upgrade from FeynHiggs2.11.3 to
FeynHiggs2.12.0 or higher you have to adjust FHSetFlags
(See "what happened/history" below).
Download of the tar.gz-files:
You can download the complete tar.gz-file, containing all files
Current version for
Download the executables directly:
You can download the executables directly (version 2.14.3 and others).
They are statically linked.
In case you encounter problems with the executables, try to download
the full version and do the compilation yourself.
- Command-line interface:
- Mathematica version:
The usage of the program is explained in detail
in the man pages contained in the .tar.gz-file. Have a look at the
View the man pages online:
You may also want to have a look at the
Last update: September 20, 2018
What happened (FeynHiggs2.14.3-beta):
For the full history of FeynHiggs, go here.
- Higgs propagator poles are now (again) determined by using a numerical
pole finding procedure (as in FH2.13.0 and before), however, with a
change in the field renormalization, see the next item.
This change improves the behavior in the vicinity
of level crossing. (Thanks go to Pietro Slavich, Stefan Liebler and Tim
Stefaniak for relentless testing.). Numerically, this leads to shifts
of O(100 MeV) for most parameter choices (for low tanβ
and/or MA larger shifts are possible).
- To avoid the problems concerning the inclusion of uncontrolled
higher-order logarithms (via the iterative pole finding procedure,
see above) found in
a finite field renormalization has been introduced (in contrast to a
pure DRbar renormalization used so far).
It was ensured that the definition of ZHiggs and tanβ in our
output (which in principle could be affected by the choice of the Higgs field
renormalization) has not changed.
- Calculation of hi → γγ has been
augmented: SM limit reach in the case of strongly mixed neutral Higgs bosons
- A bug in the evaluation of mb including resummed
higher-order corrections has been removed; the numerical effect is
(very) small. Thanks go to Ivan Sobolev.
- Numerical stability in the non-degenerate
(αt2) threshold corrections in the EFT
calculation has been improved.
In case of problems:
First check these web pages:
Then you can send an email to
The FeynHiggs team:
back to the FeynHiggs overview page