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Probing the leptonic Dirac CP-violating phase in neutrino oscillation experiments.

Authors :
Ohlsson, Tommy
He Zhang
Shun Zhou
Source :
Physical Review D: Particles, Fields, Gravitation & Cosmology. Mar2013, Vol. 87 Issue 5, p1-8. 8p.
Publication Year :
2013

Abstract

The discovery of leptonic CP violation is one of the primary goals of next-generation neutrino oscillation experiments, which is feasible due to the recent measurement of a relatively large leptonic mixing angle θ13. We suggest two new working observables ΔAmαβ = max [Acpαβ(ƍ)] - min[Acpαβ(ƍ)] and ΔAcpαβ(ƍ) = Acpαβ(ƍ) -- Acpαβ(0) to describe the CP-violating effects in long-baseline and atmospheric neutrino oscillation experiments. The former signifies the experimental sensitivity to the leptonic Dirac CP-violating phase ƍ and can be used to optimize the experimental setup, while the latter measures the intrinsic leptonic CP violation and can be used to extract ƍ directly from the experimental observations. Both analytical and numerical analyses are carried out to illustrate their main features. It turns out that an intense neutrino beam with sub-GeV energies and a baseline of a few 100 km may serve as an optimal experimental setup for probing leptonic CP violation. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
24700010
Volume :
87
Issue :
5
Database :
Academic Search Index
Journal :
Physical Review D: Particles, Fields, Gravitation & Cosmology
Publication Type :
Periodical
Accession number :
87344204
Full Text :
https://doi.org/10.1103/PhysRevD.87.053006