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 [literature] [API guide] [features] [citation guide] [FHUCC] [Grid] [CDM/NUHM benchmarks]

Newest version: FeynHiggs2.14.3-beta

Upgrade information:
To upgrade from FeynHiggs2.13.0 to FeynHiggs2.14.0 or higher you have to adjust [FHSetFlags].
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 [FHEWPO]).
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 (~7.5 MB).

Current version for HiggsBounds: FeynHiggs2.8.0 or higher.

Download the executables directly:
You can download the executables directly (version 2.14.3 and others). They are statically linked.

x86-Linux:
- Command-line interface: FeynHiggs2.14.3 [2.13.0], [2.12.2], [2.11.3], [2.10.4], [2.9.5], [2.8.6], [2.7.4], [2.5.1], [2.4.1], [2.3.2], [2.2.10]
- Mathematica version: MFeynHiggs2.14.3 [2.13.0], [2.12.2], [2.11.3], [2.10.4], [2.9.5], [2.8.6], [2.7.4], [2.5.1], [2.4.1], [2.3.2], [2.2.10]
IntelMac:
- Command-line interface: FeynHiggs2.14.3
- Mathematica version: MFeynHiggs2.14.3
Windows:
- Command-line interface: FeynHiggs2.14.3
- Mathematica version: MFeynHiggs2.14.3

In case you encounter problems with the executables, try to download the full version and do the compilation yourself.

The usage of the program is explained in detail in the man pages contained in the .tar.gz-file. Have a look at the README.

View the man pages online:
[FeynHiggs] [libFH] [MFeynHiggs]
[FHSetFlags] [FHSetFlagsString] [FHSelectIpol] [FHSetSMPara] [FHSetPara] [FHSetNMFV] [FHSetLFV] [FHAddSelf] [FHSetSLHA] [FHSetDebug]
[FHRetrieveFlags] [FHRetrieveFlagsString] [FHRetrieveSMPara] [FHRetrievePara] [FHRetrieveOSPara] [FHRetrieveNMFV] [FHOutput] [FHOutputSLHA]
[FHSelectUZ] [FHGetSMPara] [FHGetPara] [FHGetTLPara] [FHGetNMFV] [FHGetSelf]
[FHHiggsCorr] [FHCouplings] [FHUncertainties] [FHHiggsProd] [FHConstraints] [FHEWPO] [FHFlavour]
[FHClearRecord] [FHSetRecord] [FHReadRecord] [FHLoopRecord] [FHSLHARecord] [FHRetrieveRecord] [FHRecordIndex] [FHLoadTable] [FHTableRecord]
You may also want to have a look at the API guide.

Last update: September 20, 2018
What happened (FeynHiggs2.14.3-beta):

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 M_A 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 arXiv:1706.00346 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 h_i → γγ has been augmented: SM limit reach in the case of strongly mixed neutral Higgs bosons is improved.
A bug in the evaluation of m_b 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 (α_t²) threshold corrections in the EFT calculation has been improved.

For the full history of FeynHiggs, go here.

In case of problems: First check these web pages: [help #1] [help #2]
Then you can send an email to Sven Heinemeyer and Thomas Hahn.

The FeynHiggs team:
[Henning Bahl] [Thomas Hahn] [Sven Heinemeyer] [Wolfgang Hollik] [Sebastian Paßehr] [Heidi Rzehak] [Georg Weiglein]
Former members: [Karina Williams]

back to the FeynHiggs overview page