2009/07/31 by Abhijit Samanta
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Energy (signal processing) #Muon #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Sensitivity (control systems) #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.80.073008
published as Phys. Rev. D 80, 073008 (2009) · 9 pages, 7 figures, clarifying discussions on results added; accepted in Phys. Rev. D
arxiv created 2009/09/18 · openalex publication_date 2009/10/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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 \ensuremathθ13 and \ensuremathδCP 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\ensuremath∼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 \ensuremathδCP\ensuremath≈0\ifmmode^∘\else\textdegree\fi and 180\ifmmode^∘\else\textdegree\fi at 90% confidence level. We find no significant sensitivity for \ensuremathδCP\ensuremath≈90\ifmmode^∘\else\textdegree\fi or 270\ifmmode^∘\else\textdegree\fi.