Bonn 2020 – wissenschaftliches Programm
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HK 28.5: Vortrag
Mittwoch, 1. April 2020, 15:15–15:30, J-HS B
Atmospheric neutrino physics with JUNO — •Giulio Settanta1, Stefano M. Mari2,3, Cristina Martellini2,3, Paolo Montini2,3, Christoph Genster1, Yuhang Guo1,5, Alexandre S. Göttel1,4, Philipp Kapmann1,4, Runxuan Liu1,4, Livia Ludhova1,4, and Yu Xu1,4 — 1Institut für Kernphysik, Forschungszentrum Jülich — 2Università degli Studi Roma 3 — 3INFN, sezione di Roma 3 — 4Physikalisches Institut B, RTWH Aachen University — 5School of Nuclear Science and Technology, Xi'an Jiaotong University,Xi*an 710049, China
The atmospheric neutrino flux represents a continuous source that can be exploited to infer properties about Cosmic Rays and neutrino oscillation physics. The JUNO observatory, a 20 kt liquid scintillator currently under construction in China, will be able to detect the atmospheric flux, given the large fiducial volume and the excellent energy resolution. In this study, a sample of Monte Carlo events has been generated from theoretical models of the atmospheric neutrino flux, through the Genie software. To evaluate the JUNO performance, the events have then been processed by a full Geant4-based simulation. The different time evolution of light on the PMTs allows to discriminate the flavor of the primary neutrinos. A probabilistic unfolding method has been used, in order to infer the primary neutrino energy spectrum from the detector output. JUNO will be particularly sensitive in the energy range (100-1000) MeV, where neutrino-induced events can be fully contained within the instrumented volume. Future perspectives about atmospheric neutrino oscillation physics are presented.