The GENIE collaboration maintains a popular suite of software products
for the experimental neutrino community. They include:
The well-known GENIE Generator product 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.
The Generator 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 and its
predictions serve as standard reference points for the neutrino community.
The Comparisons 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".
The Comparisons 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 Tuning product implements
the powerfull new GENIE global analysis of neutrino scattering data.
The GENIE global analysis produces physics tunes which are fully integrated in the
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 product.
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!
GENIE / Professor interface code.
General support tools, unit tests etc
Automated Validation Suite - Continuous Integration
The "lamp" is a collection of scripts for building from scratch GENIE,
including all the necessary external packages.