Neutrino 2020

Residual reactor antineutrinos observation with the Double Chooz detectors

Not scheduled

10m

Poster Poster session 4

Speakers

Dr Anthony Onillon (IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France)Dr Cécile Jollet (CENBG, CNRS/IN2P3, Université de Bordeaux, Gradignan, France.)Dr Valery Sinev (Institute for Nuclear Research of Russian Academy of Sciences, Moscow, Russia)

Description

The Double Chooz (DC) experiment is a reactor antineutrino experiment designed to measure the θ13 mixing angle. The experiment is located at Chooz-B nuclear power plant and consists of two IBD detectors respectively located ~400m and ~1050m to the two 4.25 GW pressurized water reactors constituting the plant. In 2018, DC reported its latest analysis of θ13 with both detectors taking data simultaneously. This analysis benefit of an improved IBD selection technique that increase by ~2.5 the statistics compared to the previous one. Thanks to it's unique site configuration, DC also benefit in 2017 of four periods with both reactors off.
In this poster, the latest analysis of ~27 days of reactor off data using this new IBD selection method will be presented as well as a prediction of the residual antineutrinos expected from the nuclear fuel.

Mini-abstract

Observation of residual antineutrinos from nuclear spent fuel in the Double Chooz experiment.

Presentation materials

Poster_DC_offoff_CJ_AO_VS.pdf