is an international collaboration
of scientists that
plays the leading role in
a) the development of a modern and universal event generator framework and tools in support of neutrino experiments,
b) the consistent, validated and efficient implementation of a constellation of alternative physics models within a common platform,
c) the development and characterisation of novel comprehensive physics models
for the simulation
of neutrino interactions
d) the development of an advanced global analysis of neutrino scattering data
The GENIE collaboration
maintains a popular suite of software products
for the experimental neutrino community.
The well-known Generator
implements a modern framework for Monte Carlo event generators and
includes state-of-the-art physics modules. The GENIE physics model is universal and comprehensive
It handles all neutrinos and targets, and all processes relevant from MeV to PeV energy scales.
includes several tools (flux drivers, detector geometry navigation drivers,
and specialized event generation apps)
to simulate complex experimental setups in full detail
The GENIE Generator
is used by nearly all modern neutrino experiments
predictions serve as standard reference points for the neutrino community.
product includes very extensive curated archives of neutrino, charged-lepton
and hadron scattering data
, as well as highly-developed software to produce a
comprehensive set of data/MC comparisons
It includes embedded interfaces to the Professor tuning tool
which "reduces the exponentially expensive process of brute-force tuning to a scaling closer to a power
law in the number of parameters and allows for massive parallelisation
product plays a key role in comprehensive model characterization in GENIE,
it underpins the GENIE global analysis, and it enabled the production of several new tunes.
the powerfull new GENIE global analysis of neutrino scattering data
The GENIE global analysis produces physics tunes which are fully integrated in the
Finally, the Reweight
product includes a selection of tools to propagate model uncertainties
and to support generator-related analysis tasks
The reweighting procedure has inherent limitations. Important modelling systematics are not reweightable
in principle and they have no corresponding weight calculator in the Reweight
Indeed, the GENIE tuning procedure itself makes no use of the Reweight product but it relies on response
functions constructed from brute-force parameter scans made with the aid of the Professor tool.
Currently, the Reweight
product it does not provide the full systematic error
for any GENIE tune. However, we have medium-term plans to overhaul this product
and use it for
public release of the detailed Professor/YODA response functions
constructed from our
brute-force systematic parameter scans, as well as to
release all covariance matrices from the GENIE global fits of neutrino scattering data.
The upgraded Reweight
product will support all public GENIE physics tunes!