Speaker
Mr
Marco Grassi
(APC - IN2P3 - CNRS)
Description
JUNO is a Liquid Scintillator Detector (LSD) currently under construction in the south of China (Jiangmen city, Guangdong province). JUNO aims to detect reactor antineutrinos at a baseline of 53 km, with the goal of determining the neutrino mass ordering and performing a sub-percent measurement of three of the neutrino oscillation parameters. Its physics programme also includes the detection of supernova neutrinos, geoneutrinos and possibly solar neutrinos, making it a real multipurpose neutrino experiment. Once completed, JUNO will be the largest LSD ever built, consisting in a 20 kt target mass made of Linear AlkylBenzene liquid scintillator, monitored by 17000 20” high quantum efficiency (QE) photomultipliers (PMTs) providing a ~75% photo-coverage. Large photo-coverage and large QE are indeed pivotal to reach a light level of 1200photoelectrons/MeV meant to yield an unprecedented 3% total energy resolution at 1 MeV. JUNO will also be the first LAND to exploit a double calorimetry system comprising an additional set of 25000 3” PMTs meant to address the non-stochastic component of the energy resolution. In this talk I will describe JUNO’s detector design, I will review its physics capabilities and I will shortly describe the experimental site and the related civil engineering.
Primary author
Mr
Marco Grassi
(APC - IN2P3 - CNRS)