A highly granular calorimeter concept for long baseline near detectors

Understand

Future long baseline neutrino experiments such as the DUNE experiment under construction at Fermilab will perform precision measurements of neutrino oscillations, including the potential for the discovery of CP violation in the lepton sector.

• These measurements require an understanding of the unoscillated neutrino beam with unprecedented accuracy.
• This will be provided by complex near detectors which consist of different subsystems including tracking elements and electromagnetic calorimetry.
• A high granularity in the calorimeter, provided by scintillator tiles with SiPM readout as used in the CALICE analog hadron calorimeter, provides the capability for direction reconstruction of photon showers, which can be used to determine the decay positions of neutral pions.