First neutrino oscillation results of the JUNO experiment by Mathieu Bongrand (SUBATECH)

vendredi 2 oct. 2026, 14:00 → 16:00 Europe/Paris

Auditorium Marcel Vivargent (LAPP)

Francesco Costanza (LAPP), Luis Manzanillas (Manzanillas)

The Jiangmen Underground Neutrino Observatory (JUNO) experiment is a multi-purpose   neutrino experiment, located in south China. Its primary goals are to determine   the neutrino mass ordering (NMO) and improve the precision on the neutrino oscillation   parameters ($|\Delta m^2_{31}|$, $\Delta m^2_{21}$ and $\sin^2 \theta_{12}$)   through the study of reactor anti-neutrinos.

JUNO main detector consists of a 20-kton liquid scintillator central detector (CD)  readout by more than 43,000 PMTs. It is surrounded by a 35-kton water pool (WP),   that serves as a muon veto and shield against natural radioactivity, and an external Top Tracker plastic scintillator muon detector.

After ten years of detector construction and eight-month commissioning phase,   JUNO started physics data taking at the end of August 2025.  Its first physics results on solar parameters were released in November 2025,   while the first search for NMO was presented in June 2026.

This seminar will focus on the initial performances of the JUNO detector   and on the two first neutrinos oscillation results with reactor antineutrinos.

14:00 → 15:00 First neutrino oscillation results of the JUNO experiment

Orateur: Mathieu Bongrand (Subatech - CNRS - Nantes Université - IMT Atlantique)