Working Group on the Interplay between Collider and Flavour Physics:

Tools and Benchmarks


  • Sven Heinemeyer, Sven.Heinemeyer[AT]
  • Frederic Ronga, Frederic.Ronga[AT]
  • Uli Haisch, uhaisch[AT]


Flavour Les Houches Accord NEW

The objective of this accord is a clear and well-defined structure for interfacing computational tools of "New Physics" models with low-energy flavour calculations. More information...


We do not attempt to provide yet another database with tools. We simply put a list of existing tools. Most of them are available here.
Note: only flavor observable related tools are listed here.

Name Author(s) DescriptionSorted ascending Availability
FeynArts/FormCalc Hahn (Arbitrary) one-loop corrections in the NMFV MSSM yes (webpage, manual)
MicrOMEGAs Belanger, Boudjema, Pukhov, Semenov CDM density, some B physics observables in the MFV MSSM yes (webpage, manual)
CKMFitter Charles, et al. CKM fits (Frequentist), (mostly) in SM yes (webpage)
SoftSusy Allanach Evaluates NMFV MSSM parameters from GUT input yes (webpage, manual)
Spheno Porod evaluates NMFV MSSM parameters from GUT input yes (webpage, manual)
Spice Engelhard, Feng, Galon, Sanford, Yu evaluates spectrum, decay widths and BRs (including LFV BRs) for LFV models. yes(webpage)
no name Bejar, Guasch FC Higgs/top decays in the THDM I/II planned
FCHDECAY Bejar, Guasch FCNC Higgs decays in the NMFV MSSM yes (webpage)
no name Chankowski, Jäger, Rosiek FCNC observables in the MSSM planned
CPSuperH Lee, Pilaftsis, et al. Higgs phenomenology and B physics observables in the MFV complex MSSM yes (webpage, manual)
FeynHiggs Hahn, Heinemeyer, Hollik, Rzehak, Weiglein Higgs/EWPO phenomenology and some B physics observables in the (N)MFV (complex) MSSM yes (webpage, manual)
SuperIso Mahmoudi Isospin asymmetries and other flavor observables in the MFV MSSM yes (webpage)
no name Silvestrini KK mixing, BB mixing, b→sγ, b→sll planned
SuFla Isidori, Paradisi Low energy flavor (B and K) observables in the MFV MSSM partially
XSusy Bozzi, Fuks, Herrmann, Klasen Masses, production cross sections, BRs in the NMFV MSSM partially
SusyBSG Degrassi, Gambino, Slavich NLO calculation of BR[B→Xsγ] in the MSSM with Minimal Flavor Violation yes (webpage)
no name Bobeth, Ewert, Haisch Rare B and K decays in/beyond the SM planned
SLHALib2 Hahn Read/write SLHA data (NMFV/RPV/CPV MSSM, NMSSM) yes (webpage, manual)
SuperBayeS Ruiz, Trotta, Feroz SUSY fits and flavor predictions yes (webpage)
UTfit Bona, et al. Unitarity Triangle fits (Bayesian) in SM and beyond planned (webpage)

If you want to add something to this list, send an email to .

General questions that should be answered:

  • What is still missing? Are all relevant topics covered?
  • How can it be ensured that a code/calculation is useful/usable for others?
  • Can experimentalists make use of them?
  • What are the wishes of the experimentalists?
  • Interaction between theory and experiment?


Benchmarks can be used to

  • study the complementarity of low- and high-energy experiments
  • study the synergy of low- and high-energy experiments

Three different approaches have been discussed:

  1. Take the good old SPS points (some have been studied in quite detail)
    → evaluate LHC measurements
    → investigate what B physics can add
    This appoach has been used e.g. for SuperB investigations.
  2. Take a GUT based model with flavor violation
    → fit to current data
    → fit to anticipated LHC data
    → investigate what B physics can add
  3. Define benchmark scenarios (in GUT based models)
    → investigate compatibility with existing constraints
    → investigate what B physics can add (in the future)
    This approach has partially been realized in the NUHM.

If you want to add some thoughts, send an email to .

-- SvenHeinemeyer - 25 Sep 2008

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Topic revision: r14 - 2009-12-27 - SvenHeinemeyer
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