DUNE neutrino flavour identification using a CNN

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DUNE neutrino flavour identification using a CNN Saul Alonso Monsalve and Leigh Whitehead 190418 Introduction One of the most important parts of any neutrino oscillation analysis is the identification of the neutrino flavour We typically

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01
DUNE neutrino flavour identification using a CNN Saul Alonso Monsalve and Leigh Whitehead

19/04/18<br>
02
Introduction One of the most important parts of any neutrino oscillation analysis is the identification of the neutrino flavour

We typically want to classify events into one of four types:
Charged-current or neutral-current

Will focus a bit more on the νe analysis here since it is the analysis that will provide a measurement of CP-violation
DUNE’s flagship analysis

The technique will also provide very good selections of the other particle types, however Leigh Whitehead 2<br>
03
Electron Neutrino Analysis Our biggest challenge is the selection (rejection) of signal (background) interactions

The analysis must therefore:
Efficiently select signal charged current electron neutrino interactions

Reject backgrounds arising from other neutrino interactions
Main one comes from neutral current interactions producing a π0 meson
The two decay photons will pair produce

Can mimic the electron signal in the TPC Leigh Whitehead 3<br>