Электронный каталог

Статья

Abe, K.
Updated T2K Measurements of Muon Neutrino and Antineutrino Disappearance Using 3.6 x 10*2*1 Protons on Target / K.Abe, Yu.I.Davydov, V.Glagolev, V.Kiseeva, I.A.Suslov, V.V.Tereshchenko, B.Popov, [a.o.] // Physical Review D [Electronic resource]. – 2023. – Vol.108, No.7. – P.072011. – URL: https://doi.org/10.1103/PhysRevD.108.072011. – Bibliogr.:52.

Muon neutrino and antineutrino disappearance probabilities are identical in the standard three-flavor neutrino oscillation framework, but CPT violation and nonstandard interactions can violate this symmetry. In this work we report the measurements of sin2θ23 and Δm232 independently for neutrinos and antineutrinos. The aforementioned symmetry violation would manifest as an inconsistency in the neutrino and antineutrino oscillation parameters. The analysis discussed here uses a total of 1.97×1021 and 1.63×1021 protons on target taken with a neutrino and antineutrino beam respectively, and benefits from improved flux and cross section models, new near-detector samples and more than double the data reducing the overall uncertainty of the result. No significant deviation is observed, consistent with the standard neutrino oscillation picture



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 346.1а - Свойства нейтрино
Спец.(статьи,препринты) = С 343 в - Взаимодействие протонов с ядрами (Z>2). Изобарно- аналоговые состояния
Бюллетени = 51/023