Exceptional Sensitivity to Neutrino Parameters with a Two Baseline Beta-Beam Set-up

Understand

We examine the reach of a Beta-beam experiment with two detectors at carefully chosen baselines for exploring neutrino mass parameters.

• Locating the source at CERN, the two detectors and baselines are: (a) a 50 kton iron calorimeter (ICAL) at a baseline of around 7150 km which is roughly the magic baseline, e.g., ICAL@INO, and (b) a 50 kton Totally Active Scintillator Detector at a distance of 730 km, e.g., at Gran Sasso.
• We choose 8B/8Li source ions with a boost factor \gamma of 650 for the magic baseline while for the closer detector we consider 18Ne/6He ions with a range of Lorentz boosts.
• We find that the locations of the two detectors complement each other leading to an exceptional high sensitivity.