Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-08-10
Phys.Rev.D80:076007,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages two-column REVTeX
Scientific paper
10.1103/PhysRevD.80.076007
The effects of perturbative Lorentz and CPT violation on neutrino oscillations are studied. Features include neutrino-antineutrino oscillations, direction dependence, and unconventional energy behavior. Leading-order corrections arising from renormalizable operators are derived in the general three-flavor effective field theory. The results are applied to neutrino-beam experiments with long baselines, which offer excellent sensitivity to the accompanying effects. Key signatures of Lorentz and CPT violation using neutrino beams include sidereal variations in the oscillation probabilities arising from the breakdown of rotational symmetry, and CPT asymmetries comparing neutrino and antineutrino modes. Attainable sensitivities to coefficients for Lorentz violation are estimated for several existing and future experiments.
Diaz Sebastian J.
Kostelecky Alan
Mewes Matthew
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