Introduction
On this page a list of older software versions can be found. Please note that the software versions listed here are not maintained anymore. The newest and maintained version of Gfitter can be found here.
Latest Gfitter version: Gfitter 2.1
Release date: January 2015
Release notes:
- Implementation of updated version of the parametrisation for MW (v2, hep-ph/0311148v2), including the known four-loop QCD correction and the most recent value of the Fermi constant.
- Includes NNLO calculations for the total and all partial decay width of the Z-boson. A number of theoretical uncertainties are implemented and treated as nuisance parameters in the fit. This version can be used on Scientific Linux 6.
Packages included:
- src/: Gfitter core code (controlling, data
handling, fitting, statistics analysis, etc.)
-
Gfitter core package provides parameter (so-called GParameters)
fitting via data cards. Currently, the input data are written in XML
format, which however can be transparently replaced by any format. The
theory to be tested is coded in form of GTheory derivatives, in which
the dependent GParameters, defined in the input data card, are
booked. Each package comprising a full theory has its own
namespace. Parameter and theory handling and the attribution of
theories to parameters (through their names) is centrally performed in
the Gfitter core package via a central data container class, denoted
GStore. The detection of fit parameters is automatic, depending on
whether or not a given parameter has an associated GTheory.
- ./: setup scripts, README and instruction files
- test/: contains Gfitter application macros
and XML driving cards
- gtest/: contains a fit example
- lib/: contains shared libraries
- gew/: package for the calculation of
electroweak observables; features:
- MW:
full two-loop corrections and known beyond-two-loop corrections (M. Awramik et al., Phys. Rev. D69, 053006 (2004), hep-ph/0311148).
Implementation of updated version of the parametrisation for MW (v2, hep-ph/0311148v2), including the known four-loop QCD correction and the most recent value of the Fermi constant.- sin2θleff:
full two-loop corrections and known beyond-two-loop corrections (M. Awramik et al., JHEP 11, 048 (2006), hep-ph/0608099; M. Awramik et al., Nucl. Phys. B813:174-187 (2009), arXiv:0811.1364) - Partial and total Z widths: fermionic electroweak two-loop corrections and known beyond-two-loop corrections (A. Freitas, JHEP 1404, 070 (2014), arXiv:1401.2477)
- Total W width:
accurate parametrization of the one-loop result (Cho et. al, arXiv:1104.1769, see also older papers 1, 2, 3). - strong coupling:
complete fourth-order (3NLO) calculation of the hadronic Z width (P. A. Baikov et al., Phys. Rev. Lett. 108 (2012) 222003, arXiv:1201.5804) - sin2θleff:
- MW:
- goblique/: package for the Standard Model
predictions of oblique parameters
- gstu/: package for the oblique parameter
predictions for the Standard Model and beyond-SM models
- g2hdm/: package for the prediction of
observables in generic 2-Higgs doublet models
Version: Gfitter 2.0
Release date: December 2014
Release notes: Includes NNLO calculations for the total and all partial decay width of the Z-boson. A number of theoretical uncertainties are implemented and treated as nuisance parameters in the fit. This version can be used on Scientific Linux 6.
Packages included:
- src/: Gfitter core code (controlling, data
handling, fitting, statistics analysis, etc.)
-
Gfitter core package provides parameter (so-called GParameters)
fitting via data cards. Currently, the input data are written in XML
format, which however can be transparently replaced by any format. The
theory to be tested is coded in form of GTheory derivatives, in which
the dependent GParameters, defined in the input data card, are
booked. Each package comprising a full theory has its own
namespace. Parameter and theory handling and the attribution of
theories to parameters (through their names) is centrally performed in
the Gfitter core package via a central data container class, denoted
GStore. The detection of fit parameters is automatic, depending on
whether or not a given parameter has an associated GTheory.
- ./: setup scripts, README and instruction files
- test/: contains Gfitter application macros
and XML driving cards
- gtest/: contains a fit example
- lib/: contains shared libraries
- gew/: package for the calculation of
electroweak observables; features:
- MW:
full two-loop corrections and known beyond-two-loop corrections (M. Awramik et al., Phys. Rev. D69, 053006 (2004), hep-ph/0311148) - sin2θleff:
full two-loop corrections and known beyond-two-loop corrections (M. Awramik et al., JHEP 11, 048 (2006), hep-ph/0608099; M. Awramik et al., Nucl.Phys.B813:174-187 (2009), arXiv:0811.1364) - Partial and total Z widths: fermionic electroweak two-loop corrections and known beyond-two-loop corrections (A. Freitas, JHEP 1404, 070 (2014), arXiv:1401.2477)
- Total W width:
accurate parametrization of the one-loop result (Cho et. al, arXiv:1104.1769, see also older papers 1, 2, 3) - strong coupling:
complete fourth-order (3NLO) calculation of the hadronic Z width (P. A. Baikov et al., arXiv:1201.5804) - sin2θleff:
- MW:
- goblique/: package for the Standard Model
predictions of oblique parameters
- gstu/: package for the oblique parameter
predictions for the Standard Model and beyond-SM models
- g2hdm/: package for the prediction of
observables in generic 2-Higgs doublet models
Version: Gfitter 1.1
Release date: June 2013
Release notes: Includes updated results for the calculation of Rb (arXiv:1205.0299v2) and fixes of compiler warnings/errors for new C++ compilers. This version can be used on Scientific Linux 6.
Packages included:
- src/: Gfitter core code (controlling, data
handling, fitting, statistics analysis, etc.)
-
Gfitter core package provides parameter (so-called GParameters)
fitting via data cards. Currently, the input data are written in XML
format, which however can be transparently replaced by any format. The
theory to be tested is coded in form of GTheory derivatives, in which
the dependent GParameters, defined in the input data card, are
booked. Each package comprising a full theory has its own
namespace. Parameter and theory handling and the attribution of
theories to parameters (through their names) is centrally performed in
the Gfitter core package via a central data container class, denoted
GStore. The detection of fit parameters is automatic, depending on
whether or not a given parameter has an associated GTheory.
- ./: setup scripts, README and instruction files
- test/: contains Gfitter application macros
and XML driving cards
- gtest/: contains a dummy fit example
- lib/: contains shared libraries
- gew/: package for the calculation of
electroweak observables; features:
- MW:
full two-loop corrections and known beyond-two-loop corrections (M. Awramik et al., Phys. Rev. D69, 053006 (2004), hep-ph/0311148) - sin2θleff:
full two-loop corrections and known beyond-two-loop corrections (M. Awramik et al., JHEP 11, 048 (2006), hep-ph/0608099; M. Awramik et al., Nucl.Phys.B813:174-187 (2009), arXiv:0811.1364) - Partial and total Z widths and total W width:
acurate parametrizations (Cho et. al, arXiv:1104.1769, see also older papers 1, 2, 3) - strong coupling:
complete fourth-order (3NLO) calculation of the hadronic Z width (P. A. Baikov et al., arXiv:1201.5804) - Rb:
electroweak two-loop corrections (Freitas and Huang, arXiv:1205.0299) - sin2θleff:
- MW:
- goblique/: package for the Standard Model
predictions of oblique parameters
- gstu/: package for the oblique parameter
predictions for the Standard Model and beyond-SM models
- g2hdm/: package for the prediction of
observables in generic 2-Higgs doublet models
Version: Gfitter 1.0
Release date: September 2012
Release notes: First public version of the Gfitter code.
Packages included:
- src/: Gfitter core code (controlling, data
handling, fitting, statistics analysis, etc.)
-
Gfitter core package provides parameter (so-called GParameters)
fitting via data cards. Currently, the input data are written in XML
format, which however can be transparently replaced by any format. The
theory to be tested is coded in form of GTheory derivatives, in which
the dependent GParameters, defined in the input data card, are
booked. Each package comprising a full theory has its own
namespace. Parameter and theory handling and the attribution of
theories to parameters (through their names) is centrally performed in
the Gfitter core package via a central data container class, denoted
GStore. The detection of fit parameters is automatic, depending on
whether or not a given parameter has an associated GTheory.
- ./: setup scripts, README and instruction files
- test/: contains Gfitter application macros
and XML driving cards
- gtest/: contains a dummy fit example
- lib/: contains shared libraries
- gew/: package for the calculation of
electroweak observables; features:
- MW:
full two-loop corrections and known beyond-two-loop corrections (M. Awramik et al., Phys. Rev. D69, 053006 (2004), hep-ph/0311148) - sin2θleff:
full two-loop corrections and known beyond-two-loop corrections (M. Awramik et al., JHEP 11, 048 (2006), hep-ph/0608099; M. Awramik et al., Nucl.Phys.B813:174-187 (2009), arXiv:0811.1364) - Partial and total Z widths and total W width:
acurate parametrizations (Cho et. al, arXiv:1104.1769, see also older papers 1, 2, 3) - strong coupling:
complete fourth-order (3NLO) calculation of the hadronic Z width (P. A. Baikov et al., arXiv:1201.5804) - Rb:
electroweak two-loop corrections (Freitas and Huang, arXiv:1205.0299) - sin2θleff:
- MW:
- goblique/: package for the Standard Model
predictions of oblique parameters
- gstu/: package for the oblique parameter
predictions for the Standard Model and beyond-SM models
- g2hdm/: package for the prediction of
observables in generic 2-Higgs doublet models