Search for -Violating Neutrino Nonstandard Interactions with the NOvA Experiment
Physical review letters, 2024•APS
This Letter reports a search for charge-parity (CP) symmetry violating nonstandard
interactions (NSI) of neutrinos with matter using the NOvA Experiment, and examines their
effects on the determination of the standard oscillation parameters. Data from ν μ (ν¯ μ)→ ν μ
(ν¯ μ) and ν μ (ν¯ μ)→ ν e (ν¯ e) oscillation channels are used to measure the effect of the
NSI parameters ϵ e μ and ϵ e τ. With 90% CL the magnitudes of the NSI couplings are
constrained to be| ϵ e μ|≲ 0.3 and| ϵ e τ|≲ 0.4. A degeneracy at| ϵ e τ|≈ 1.8 is reported …
interactions (NSI) of neutrinos with matter using the NOvA Experiment, and examines their
effects on the determination of the standard oscillation parameters. Data from ν μ (ν¯ μ)→ ν μ
(ν¯ μ) and ν μ (ν¯ μ)→ ν e (ν¯ e) oscillation channels are used to measure the effect of the
NSI parameters ϵ e μ and ϵ e τ. With 90% CL the magnitudes of the NSI couplings are
constrained to be| ϵ e μ|≲ 0.3 and| ϵ e τ|≲ 0.4. A degeneracy at| ϵ e τ|≈ 1.8 is reported …
This Letter reports a search for charge-parity () symmetry violating nonstandard interactions (NSI) of neutrinos with matter using the NOvA Experiment, and examines their effects on the determination of the standard oscillation parameters. Data from and oscillation channels are used to measure the effect of the NSI parameters and . With 90% CL the magnitudes of the NSI couplings are constrained to be and . A degeneracy at is reported, and we observe that the presence of NSI limits sensitivity to the standard phase .