MCFM - Monte Carlo for FeMtobarn processes

Authors: John Campbell, Keith Ellis.

Overview

This is the homepage for the Monte Carlo simulation MCFM. The program is designed to calculate cross-sections for various femtobarn-level processes at hadron-hadron colliders. For most processes, matrix elements are included at next-to-leading order and incorporate full spin correlations. For more details, including a list of available processes, view the documentation (PDF).

Download

The source is available as a tar'ed and gzip'ed package, which extracts into a directory called MCFM. The source can be initialized by running the Install command and then compiled with make. The code has been developed and tested under Redhat Linux and Mac OSX, please report any compilation problems under other operating systems to the authors. Execution should be carried out in the Bin directory, whilst some documentation (for example, instructions regarding the format for the input file) can be found in Doc.

mcfm-5.8.tar.gz ( NEW! updated April 9th, 2010)
Latest version, containing NLO results for top pair production with decay and small bug fixes.

Examples

There have been a number of papers based on results produced by the MCFM code, each one corresponding to different processes.

Calculation of the Wbb background to a WH signal at the Tevatron.
R.K. Ellis, Sinisa Veseli, Phys. Rev. D60:011501 (1999), hep-ph/9810489.
Vector boson pair production at the Tevatron, including all spin correlations of the boson decay products.
J.M. Campbell, R.K. Ellis, Phys. Rev. D60:113006 (1999), hep-ph/9905386.
Calculation of the Zbb and other backgrounds to a ZH signal at the Tevatron.
J.M. Campbell, R.K. Ellis, Phys. Rev. D62:114012 (2000), hep-ph/0006304.
Next-to-leading order corrections to W+2 jet and Z+2 jet production at hadron colliders.
John Campbell, R.K. Ellis, Phys. Rev. D65:113007 (2002), hep-ph/0202176.
Higgs Boson Production in Association with a Single Bottom Quark.
J. Campbell, R.K. Ellis, F. Maltoni, S. Willenbrock, Phys. Rev. D67:095002 (2003), hep-ph/0204093.
Next-to-Leading Order QCD Predictions for W+2 jet and Z+2 jet Production at the CERN LHC.
J. Campbell, R.K. Ellis and D. Rainwater, Phys. Rev. D68:094021 (2003), hep-ph/0308195.
Associated Production of a Z Boson and a Single Heavy Quark Jet.
J. Campbell, R.K. Ellis, F. Maltoni, S. Willenbrock, Phys. Rev. D69:074021 (2004), hep-ph/0312024.
Single top production and decay at next-to-leading order,
J. Campbell, R.K. Ellis and F. Tramontano, Phys.Rev.D70:094012 (2004), hep-ph/0408158.
Next-to-leading order corrections to Wt production and decay,
J. Campbell, and F. Tramontano, Nucl.Phys.B726:109-130 (2005), hep-ph/0506289.
Production of a Z Boson and Two Jets with One Heavy Quark Tag.
J. Campbell, R.K. Ellis, F. Maltoni, S. Willenbrock, Phys. Rev. D73:054007 (2006), hep-ph/0510362.
Next-to-Leading order Higgs + 2 jet production via gluon fusion.
J. Campbell, R.K. Ellis, G. Zanderighi JHEP 0610:028 (2006), hep-ph/0608194.
t-channel single top production at hadron colliders.
J. M. Campbell, R. Frederix, F. Maltoni and F. Tramontano, Phys. Rev. Lett. {\bf 102} (2009) 182003, arXiv:0903.0005 [hep-ph].
Hadronic production of a Higgs boson and two jets at next-to-leading order.
J. M. Campbell, R. K. Ellis and C. Williams, arXiv:1001.4495 [hep-ph].

The third of these references contains the most details of our method.

Recent progress

The following recent publications have also made use of calculations implemented in MCFM, but the corresponding code has not yet been made public.

Production of a W boson and two jets with one b-quark tag.
J. Campbell, R.K. Ellis, F. Maltoni, S. Willenbrock, Phys. Rev. D75:054015 (2007), hep-ph/0611348.
QCD corrections to J/psi and Upsilon production at hadron colliders.
J. Campbell, F. Maltoni, F. Tramontano, submitted to Phys. Rev. Lett., hep-ph/0703113.

Older versions

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, maintained for historical value only.

mcfm-1.0.tar.gz
An old version, maintained for historical value only.

A number of packages can be linked to MCFM, if the user desires:

CERNLIB - when linked, the parton densities of PDFLIB can be used and n-tuple event output is possible.
LHAPDF - when linked, the pdf implementation of the Les Houches Accord is included.

When running with the native PDF routines of MCFM, additional input files may be necessary and can be obtained from the relevant collaboration:

Six gluon amplitudes

In the course of preparing e-Print Archive: hep-ph/0602185, we coded various analytic one-loop results for the six gluon amplitudes. The fortran programs are given here.

Higgs + 4 parton amplitudes

In the course of preparing e-Print Archive: ArXiv: 0910.4481 [hep-ph], we coded the analytic one-loop results for the Higgs + 4 parton amplitudes. The fortran programs are given here.

Alternatives

For other NLO codes of a similar nature see:

DYRAD
JETRAD
NLOJET++
AYLEN/EMILIA
EKS, (S.D.) Ellis, Kunszt and Soper jet codes
Mangano , Nason and Ridolfi have released MNR code for heavy quark production
Frixione and Ridolfi have released the code for jet (photo)-production
Codes (mainly) for Higgs-production from Michael Spira
The PHOX family from P. Aurenche, T. Binoth, M. Fontannaz, J. Ph. Guillet, G. Heinrich, E. Pilon and M. Werlen.

For tree graph codes for many processes see:

Last updated: 25th October 2009.
E-mail: J.Campbell@physics.gla.ac.uk.