Chapter 16
Versions prior to MCFM-9

16.1 MCFM-8

• MCFM-8.3.tar.gz (released April 4th, 2019), v8.3 manual (PDF)

  • New processes for off-shell SM and SMEFT single-top-quark production

• MCFM-8.2.tar.gz (released February 8th, 2018)

  • Implementation of high-pt treatment of mass effects in H+jet process.

• MCFM-8.1.tar.gz (released December 19th, 2017)

  • Electroweak one-loop corrections for Z, top-pair and di-jet production.
  • Z+photon process at NNLO including anomalous couplings.
  • H+2 jet process with a finite top-quark mass (LO) and H+jet with finite top-quark mass effects (NLO)
  • Support for boosted (as opposed to hadronic) definition of jettiness, which is now also used as default.
  • Support for pt and rapidity ranges for most cuts in the input file.
  • Native implementation of two PDF sets containing photons: mrstqed and CT14qed.

• MCFM-8.0.tar.gz (released May 25th, 2016; updated June 2nd to fix MMHT implementation)

  • Introduced NNLO capability for color-singlet processes.
  • Overall improvement in speed.

16.2 MCFM-7

• MCFM-7.0.1.tar.gz (released October 29th, 2015)

  • Fixed error in real calculation for some versions of gcc 4.x.
  • Updated output to support ROOT6.

• MCFM-7.0.tar.gz (released March 21st, 2015; updated June 11 for gfortran 4.9)

  • Code compiles with the OpenMP flag to automatically exploit all available threads.
  • Added four-photon process at NLO.
  • Inclusion of vector boson fusion/vector boson scattering processes at LO.
  • After Higgs discovery, added s-channel Higgs diagrams to the gg->VV processes.

16.3 MCFM-6

• MCFM-6.8.tar.gz

  • Added process for diphoton+jet production at NLO.
  • Added identical-particle interference effects for 4-lepton production and effect of WW/ZZ interference for 2-lepton, 2-neutrino production.
  • Added additional decay modes for WW and ZZ processes.
  • Fixed bug in triphoton process at NLO.

• MCFM-6.7.tar.gz (December 6th, 2013)

  • New implementation of $\mathit{gg}\to \mathit{ZZ}$ box contribution including massive loops.
  • Added processes for triphoton production at NLO, 1-loop Higgs pair production.
  • Fixed errors reported in native histograms and improved PDF uncertainty output.

• MCFM-6.6.tar.gz (April 1st, 2013)

  • Implementation of single top tH and tZ processes.
  • Implementation of dark matter mono-jet and mono-photon processes.
  • Inclusion of TensorReduction library for one-loop integrals.
• MCFM-6.5.tar.gz (March 5th, 2013)

• mcfm-6.4.tar.gz (December 22nd, 2012)

  • Corrected bug in implementation of one-loop amplitudes for H+2q+2g processes.
  • Enabled effect of removebr for process 307.
  • Fixed the implementation of a dynamic scale for single top + b processes.
  • Added a new scale choice for top production ($m_{345}^2+p_T{(345)}^2$).
  • Improved numerical stability in calculation of virtual contribution to process 201 and in calculation of real corrections to processes 180-187.

• mcfm-6.3.tar.gz (August 10th, 2012)

  • Added processes giving the radiation in the hadronic decay of the W+W- process.
  • Added processes giving the gg to H to WW process with radiation in the hadronic decay of the W.
  • Added processes giving the production and decay of t tbar W+/- including radiation in the semi-leptonic decay of the top and the anti-top.
  • Added processes giving the $H\to \mathit{Z\gamma }$ in the gluon fusion production process.
  • Added processes describing production of $Z+\gamma +\gamma$ and $Z+\gamma$+jet at NLO.

• mcfm-6.2.tar.gz (April 10th, 2012)

  • Added processes that give results for the t-channel single top process in the four-flavour scheme with top decay;
  • Added process for Higgs + 2 jets, with Higgs decaying to $\mathit{\gamma \gamma }$;
  • Added processes for Wb production from charm quarks;
  • Added LO processes for Higgs + 3 jets with Higgs decaying to WW or ZZ;
  • Added LO process for identical fermions in ZZ decay;
  • corrected small bugs.

• mcfm-6.1.tar.gz (October 19th, 2011)

  • inclusion of massive (t,b) loops in $\mathit{gg}\to \mathit{WW}$ diagrams;
  • new process for computing effect of interference with Higgs diagrams for $\mathit{gg}\to \mathit{WW}$;
  • inclusion of direct photon production including fragmentation;
  • anomalous couplings for $\mathit{W\gamma }$ and $\mathit{Z\gamma }$ production;
  • improved interface and output, corrected small bugs.

• mcfm-6.0.tar.gz (May 2nd, 2011)

  • NLO results for Wbb production including heavy quark mass effects;
  • inclusion of $\mathit{W\gamma }$, $\mathit{Z\gamma }$ and $\mathit{\gamma \gamma }$ processes with fragmentation;
  • gluon-initiated contributions to diboson processes;
  • small correction to Z+2 jet process and other bug fixes.

16.4 MCFM-5 and before

• mcfm-5.8.tar.gz (April 9th, 2010)
• mcfm-5.7.tar.gz (January 22nd, 2010)
• mcfm-5.6.tar.gz (July 31st, 2009)
• mcfm-5.5.tar.gz (June 5th, 2009)
• mcfm-5.4.tar.gz (March 12th, 2009)
• mcfm-5.3.tar.gz (October 21st, 2008)
• mcfm-5.2.tar.gz (July 12th, 2007)
• mcfm-5.1.tar.gz (June 1st, 2006)
• mcfm-5.0.tar.gz (April 25th, 2006)
• mcfm-4.1.tar.gz (January 17th, 2005)

• mcfm-4.0.tar.gz (October 15th, 2004)

  • Major revision of the code, which now includes single top processes.

• mcfm-3.4.5.tar.gz (December 23rd, 2003)

  • Minor update, addition of LO WW production with no polarization info, process 64.

• mcfm-3.4.4.tar.gz (September 3rd, 2003)

  • Minor update, mostly cosmetic changes.

• mcfm-3.4.3.tar.gz (July 2nd, 2003)

  • Bug fixes for input files using the ’tota’ option at NLO.

• mcfm-3.4.2.tar.gz (June 6th, 2003)

  • Further minor improvements over version 3.4.1.

• mcfm-3.4.1.tar.gz (May 29th, 2003)

  • Minor improvements over version 3.4.

• mcfm-3.4.tar.gz (April 24th, 2003)

  • Version 3.4 contains a number of new Higgs production processes at next-to-leading order.
• mcfm-3.2.tar.gz (October 1st, 2002)

• mcfm-2.1.tar.gz (December 14th, 2001)

  • An old version, preserved for historical value only.

• mcfm-1.0.tar.gz

  • An old version, preserved for historical value only.