

GLoBES Features and Examples
GLoBES is a modular software system to simulate longbaseline
neutrino oscillation experiments.
 Experiments are defined with the
Abstract Experiment Definition Language (AEDL)
.
Predefined AEDLfiles are available for a number of experiments.
The parameters can be modified easily by changing the AEDL files.
 The GLoBES Library contains a variety of functions
which allow to simulate various experiments on an event rate basis and to investigate
their capabilities.
 Different analysis tools are provided.
New features in version 3.0:
 Customizable treatment of systematical errors
 Userdefined priors to incorporate arbitrary external information
on the oscillation parameters
 An interface for the implementation of nonstandard physics
 Betabeam fluxes are now builtin
 New and updated AEDL files
 Various bug fixes
 Improved performance
Abstract Experiment Definition Language (AEDL) features:
 Structured Channel>Rule>Experiment building block concept (see manual)
 Multiple energy resolution functions
 Different energy smearing algorithms
 Arbitrary efficiencies
 Definition of energy cuts, bin sizes and numbers etc.
 Various systematics parameters, such as normalization and energy
calibration errors
 Different systematics modes, such as total rate or spectral analysis
 Arbitrary matter density profiles
 Arbitrary fluxes and cross sections; builtin neutrino factory and beta beam fluxes
 Any number of signalbackgroundcombinations and oscillation channels within
one experiment
 ...
GLoBES library features:
 Single and multiple experiment simulation (up to 32 experiments simultaneously)
 Lowlevel information: event rate vectors, oscillation probabilities etc.
 Simple Chi^2 for individual experiments and experiment combinations
 Inclusion systematical errors in Chi^2
 Chi^2Cuts through the ndimensional fit manifold
Example for cut through manifold in theta13deltacpplane (including systematics):
 Projection of two and multiparameter correlations.
Example for projection of twoparameter correlation:
 Projection of full nparameter correlation by ndimensional minimizer.
 Chi^2Projections onto theta13 or deltacpaxis, and any other axis.
Example for projection (onto theta13axis) of the full nparameter correlation
(thick curve) compared to the projection of the theta13deltacpcorrelation
only (thin curve):
 Chi^2Projections onto theta13deltacpplane, and any other plane
(Equivalent to first figure, but as projection of the fit manifold
and not as cut)
 Projection of the ndimensional fitmanifold onto any kdimensional hyperplane
(1<=k<n)
 Numerical location of degeneracies
 Projections and cuts of degenerate solutions.
Example for cut in theta13deltacpplane for original (black curve)
and degenerate (gray curve) solution:
 Simulation of matter density uncertainties
 Runtime modification of experiment parameters: baseline, target mass,
matter density profile etc.

New in GLoBES 3.0:
Inclusion of arbitrary external input on the oscillation parameters through
the concept of userdefined priors

New in GLoBES 3.0:
Userdefined treatment of systematical errors
Example: Sensitivity of a reactor experiment with near and far detectors

New in GLoBES 3.0:
Interface for the implementation of nonstandard physics
Example: Sensitivity of a reactor experiments to wave package decoherence effects
 ...
GLoBES software package features
 User's interface (C library) for Linux
 Detailed User's and AEDL manual
 Many examples for immediate compilation
 AEDL prototype files for conventional beams, superbeams, neutrino factories,
beta beams, reactor experiments
 A standalone program to test and debug AEDL files
 Utilities
(All figures are taken from the GLoBES User's manual)
