Karlsruhe 2024 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 7: Neutrino physics 1
T 7.6: Vortrag
Montag, 4. März 2024, 17:15–17:30, Geb. 30.21: Gerthsen-HS
JUNO's sensitivity to geoneutrinos — •Cristobal Morales Reveco1,2,3, Livia Ludhova3,2, Marco Malabarba1,2,3, Yury Malyshkin1,3, Luca Pelicci3,2, Mariam Rifai3,2, Hexi Shi1,3, and Apeksha Singhal3,2 — 1GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany — 2III. Physikalisches Institut B, RWTH Aachen University, 52062 Aachen, Germany — 3Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kt liquid scintillator detector experiment being built in China. Its main objective is to determine the neutrino mass ordering by measuring reactor anti-neutrinos at 52.5 km baseline. JUNO is also expected to have a high sensitivity to geoneutrinos, electron antineutrinos from natural radioactivity decays from 238-Uranium and 232-Thorium inside the Earth. The radiogenic heat released in these decays is in a well established relationship with the abundances of Uranium and Thorium. Thus, the measurement of geoneutrino flux can provide an insight on the Earth's energy budget. Even more, distinguishing the signal coming from the Earth's mantle is a key feature, which can unveil its convection scheme and contribution to the total radiogenic heat. Thanks to its large mass, JUNO will be able to measure Uranium and Thorium fluxes individually and to establish their ratio, yet another important parameter for geoscience, giving insights about the Earth's formation process. The talk will report the latest geoneutrino's sensitivity study of JUNO. In just one year, it will be able to collect more geoneutrinos events than KamLAND and Borexino experiments in their more than 10 years of data taking. JUNO will provide the third unique geographical and geological point of geoneutrino measurement.
Keywords: JUNO; Geoneutrino; Sensitivity; Neutrino