Abstract
The recent OPERA measurement of high-energy neutrino velocity, once independently verified, implies new physics in the neutrino sector. We revisit the theoretical inconsistency of the fundamental high-energy cutoff attributing to quantum gravity with the parity-violating gauge symmetry of local quantum field theory describing neutrinos. This inconsistency suggests high-dimension operators of neutrino interactions. Based on these studies, we try to view the OPERA result, high-energy neutrino oscillations and indicate to observe the restoration of parity conservation by measuring the asymmetry of high-energy neutrinos colliding with left- and right-handed polarized electrons.
Highlights
Since their appearance, neutrinos have always been extremely peculiar
Neutrinos have always been extremely peculiar. Their charge neutrality, near masslessness, flavour mixing, oscillation and parity-violating coupling have been at the center of a conceptual elaboration and an intensive experimental analysis that have played a major role in donating to mankind the beauty of the standard model for particle physics
The OPERA experiment [1] reports anomaly in flight time of neutrinos ( Eν = 17 GeV) from CERN to INFN Gran Sasso. This anomaly corresponds to a relative difference of the muon neutrino velocity with respect to the speed of light (v − c)/c = (2.48± 0.28± 0.30)10−5
Summary
Neutrinos have always been extremely peculiar. Their charge neutrality, near masslessness, flavour mixing, oscillation and parity-violating coupling have been at the center of a conceptual elaboration and an intensive experimental analysis that have played a major role in donating to mankind the beauty of the standard model for particle physics. We try to view the OPERA result, high-energy neutrino oscillations and indicate to observe the restoration of parity conservation by measuring the asymmetry of high-energy neutrinos colliding with left- and right-handed polarized electrons.
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