Flavours of Physics: the machine learning challenge for the search of τ−→ μ−μ−μ+ decays at LHCb

The Flavours of Physics machine learning challenge has been proposed to enhance the exchange of knowledge between the particle physics and data science communities. The LHCb collaboration provides simulated and real data used in the search for lepton flavour violationg decay τ−→ μ−μ−μ+. The challenge will be hosted by Kaggle (https://www.kaggle.com). This document describes in details the challenge with physics motivation for studying the τ−→ μ−μ−μ+ decay and analysis steps. No prior knowledge of high energy physics is required. All information on how to participate in the Challenge is available on the Kaggle web site.