QFT results for neutrino oscillations and New Physics

Abstract

The CP asymmetry in neutrino oscillations, assuming new physics at production and/or detection processes, is analyzed. We compute this CP asymmetry using the standard quantum field theory within a general new physics scenario that may generate new sources of CP and flavor violation. Well known results for the CP asymmetry are reproduced in the case of V -A operators, and additional contributions from new physics operators are derived. We apply this formalism to SUSY extensions of the Standard Model where the contributions from new operators could produce a CP asymmetry observable in the next generation of neutrino experiments.

6 pages, 3 figures, version to be published in Phys.Rev.D

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Cited by in corpus (7)

• General bounds on non-standard neutrino interactions
• Reactor neutrino oscillations as constraints on Effective Field Theory
• EFT at FASER$\nu$
• Consistent QFT description of non-standard neutrino interactions
• Searching for sterile neutrinos from $\pi$ and $K$ decays
• Probing nonstandard lepton number violating interactions in neutrino oscillations
• Nonstandard interactions of tau neutrino via charged Higgs and $W^{\prime }$ contribution