# EPS-HEP2021 conference

26-30 July 2021
Zoom
Europe/Berlin timezone

## Neutrino oscillation physics in JUNO

26 Jul 2021, 14:55
20m
Zoom

#### Zoom

Parallel session talk Neutrino Physics

### Speaker

Maxim Gonchar (JINR)

### Description

Jiangmen Underground Neutrino Observatory, or JUNO, is a future multipurpose neutrino experiment currently being built in China. The data taking with a 20 kt detector, filled with liquid scintillator, will start soon. The main physics goals include estimation of the neutrino mass ordering (NMO) with significance of 3 standard deviations and measurement of neutrino oscillation parameters $\Delta m^2_{32}$, $\Delta m^2_{21}$, $\sin^2\theta_{12}$ with sub-percent precision. Both these measurements will be done based on the observation of electron antineutrino spectrum from multiple nuclear reactors at an average distance of 53 km.

The talk covers the oscillation physics of the JUNO experiment, which is not limited to the reactor neutrino programme, owing to unprecedented energy resolution and large scale of the detector. The measurement of the solar neutrinos from $^8$B will enable JUNO to estimate $\Delta m^2_{21}$ with precision of 20\%, comparable to the current solar experiments. The atmospheric neutrino programme will provide a measurement of the mixing angle $\sin^2\theta_{23}$ and a complementary measurement of NMO. JUNO will be complemented with a satellite detector TAO located at a distance of 30 m from one of the nuclear power plants and will provide a reference measurement of reactor antineutrino spectrum with energy resolution of 2\% at 1 MeV. High energy resolution combined with a short baseline will enable TAO to provide leading constraints on sterile neutrino oscillations in a range of $10^{-2}$ eV$^2\leq\Delta m^2_{41}\leq$8 eV$^2$.

Collaboration / Activity JUNO gonchar@jinr.ru Maxim Gonchar