Neutrino Beam Constraints on Flavor-Diagonal Lorentz Violation

Abstract

Breaking of isotropy and Lorentz boost invariance in the dynamics of second-generation leptons would lead to direction-dependent changes in the lifetimes of charged pions. This would make the intensity of a neutrino beam produced via pion decay a function of the beam orientation. The experimental signature of this phenomenon--sidereal variations in the event rate at a downstream neutrino detector--has already been studied, in searches for Lorentz-violating neutrino oscillations. Existing analyses of MINOS near detector data can be used to constrain the flavor-diagonal Lorentz violation coefficients affecting muon neutrino speeds at roughly the 10^(-5) level.

15 pages

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Cited by in corpus (16)

• Fermions with Lorentz-violating operators of arbitrary dimension
• What Do We Know About Lorentz Invariance?
• Relativity violations and beta decay
• Probing Lorentz and CPT Violation in a Magnetized Iron Detector using Atmospheric Neutrinos
• General CPT-even dimension-five nonminimal couplings between fermions and photons yielding EDM and MDM
• Tests of Lorentz and CPT symmetry with hadrons and nuclei
• Contributions to Pion Decay from Lorentz Violation in the Weak Sector
• Limits on Lorentz violation from charged-pion decay
• Constraining CPT-odd nonminimal interactions in the Electroweak sector
• Concurrent tests of Lorentz invariance in $\beta$-decay experiments
• Hadronic Lorentz Violation in Chiral Perturbation Theory Including the Coupling to External Fields
• Lorentz-Violating Regulator Gauge Fields as the Origin of Dynamical Flavour Oscillations
• Constraining dimension-six nonminimal Lorentz-violating electron-nucleon interactions with EDM physics
• A dimension five Lorentz-violating nonminimal coupling for mesons in the KLZ model
• Lorentz Violation in Fermion-Antifermion Decays of Spinless Particles
• Constraining EDM and MDM lepton dimension five interactions in the electroweak sector