Introduction

Welcome to MaCh3!

This is the Reference Guide of the MaCh3 software.

You can find additional documentation on our Wiki

If you are new we recommend to start from our Tutorial

MaCh3 also comes with a Python interface. You can find out more about this in the dedicated pyMaCh3 documentation

If something is unclear please contact us via

About us

The Markov Chain 3 flavour is a framework born in 2013 as a Bayesian MCMC fitter for T2K oscillation analysis. It has now been used for multiple T2K Oscillation analyses both at the Near and Far detectors throughout the years and is also used by the DUNE and HK oscillation analysis groups as well as for joint fits between T2K and NOvA and T2K and SK's atmospheric data.

The framework has also evolved to allow non MCMC modules to interrogate the likelihoods implemented.