NSF PAR Search | NSF Public Access Repository

Search for

C P

-Violating Neutrino Nonstandard Interactions with the NOvA Experiment

https://doi.org/10.1103/PhysRevLett.133.201802

Acero, M A; Acharya, B; Adamson, P; Aliaga, L; Anfimov, N; Antoshkin, A; Arrieta-Diaz, E; Asquith, L; Aurisano, A; Back, A; et al (November 2024, Physical Review Letters)

This Letter reports a search for charge-parity (

C P

) 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} ({\bar{ν}}_{μ}) \to ν_{μ} ({\bar{ν}}_{μ})

and

ν_{μ} ({\bar{ν}}_{μ}) \to ν_{e} ({\bar{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} | \approx 1.8

is reported, and we observe that the presence of NSI limits sensitivity to the standard

C P

phase

δ_{C P}

. Published by the American Physical Society2024

Full Text Available

Search for: All records