Электронный каталог

Статья

Acero, M.A.
Search for CP-Violating Neutrino Nonstandard Interactions with the NOvA Experiment / M.A.Acero, N.Anfimov, A.Antoshkin, N.Balashov, Y.Ivaneev, A.Ivanova, I.Kakorin, A.Kalitkina, O.Klimov, L.Kolupaeva, A.Morozova, A.Olshevskiy, O.Petrova, O.Samoylov, A.Sheshukov, [a.o.] // Physical Review Letters [Electronic resource]. – 2024. – Vol. 133, No. 20. – P. 201802. – URL: https://doi.org/10.1103/PhysRevLett.133.201802. – Bibliogr.: 61.

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&sub(𝜇)⁡(𝜈^-&sub(𝜇))→𝜈&sub(𝜇)⁡(𝜈^-&sub(𝜇)) and 𝜈&sub(𝜇)⁡(𝜈^-&sub(𝜇))→𝜈&sub(𝑒)⁡(𝜈^-&sub(𝑒)) oscillation channels are used to measure the effect of the NSI parameters 𝜖&sub(𝑒⁢𝜇) and 𝜖&sub(𝑒⁢𝜏). With 90% CL the magnitudes of the NSI couplings are constrained to be |𝜖&sub(𝑒⁢𝜇)| ≲0.3 and |𝜖&sub(𝑒⁢𝜏)| ≲0.4. A degeneracy at |𝜖&sub(𝑒⁢𝜏)| ≈1.8 is reported, and we observe that the presence of NSI limits sensitivity to the standard 𝐶⁢𝑃 phase 𝛿&sub(𝐶⁢𝑃).



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 346.1в - Взаимодействие нейтрино с нуклонами и другими частицами
Спец.(статьи,препринты) = С 344.1х - Методы регистрации нейтрино
Бюллетени = 51/024