Journal
PHYSICAL REVIEW D
Volume 80, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.80.073008
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We have studied the prospects of measuring the CP violating phase with atmospheric neutrinos at a large magnetized iron calorimeter detector considering the muons (directly measurable) of the neutrino events generated by a Monte Carlo event generator Nuance. The effect of theta(13) and delta(CP) appears dominantly neither in atmospheric neutrino oscillation nor in solar neutrino oscillation, but appears as subleading in both cases. These are observable in the range of E similar to 1 GeV for atmospheric neutrino, where solar and atmospheric oscillation couple. In this regime, the quasielastic events dominate and the energy resolution is very good, but the angular resolution is very poor. Unlike beam experiments this poor angular resolution acts against its measurements. However, we find that one can be able to distinguish delta(CP) approximate to 0 degrees and 180 degrees at 90% confidence level. We find no significant sensitivity for delta(CP) approximate to 90 degrees or 270 degrees.
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