TY - JOUR
T1 - Detection of the diffuse supernova neutrino background with JUNO
AU - The JUNO Collaboration
AU - Cheng, Jie
AU - Abusleme, Angel
AU - Adam, Thomas
AU - Ahmad, Shakeel
AU - Ahmed, Rizwan
AU - Aiello, Sebastiano
AU - Akram, Muhammad
AU - An, Fengpeng
AU - An, Qi
AU - Andronico, Giuseppe
AU - Anfimov, Nikolay
AU - Antonelli, Vito
AU - Antoshkina, Tatiana
AU - Asavapibhop, Burin
AU - de André, João Pedro Athayde Marcondes
AU - Auguste, Didier
AU - Babic, Andrej
AU - Balashov, Nikita
AU - Baldini, Wander
AU - Barresi, Andrea
AU - Basilico, Davide
AU - Baussan, Eric
AU - Bellato, Marco
AU - Bergnoli, Antonio
AU - Birkenfeld, Thilo
AU - Blin, Sylvie
AU - Blum, David
AU - Blyth, Simon
AU - Bolshakova, Anastasia
AU - Bongrand, Mathieu
AU - Bordereau, Clément
AU - Breton, Dominique
AU - Brigatti, Augusto
AU - Brugnera, Riccardo
AU - Bruno, Riccardo
AU - Budano, Antonio
AU - Buscemi, Mario
AU - Busto, Jose
AU - Butorov, Ilya
AU - Cabrera, Anatael
AU - Cai, Hao
AU - Cai, Xiao
AU - Cai, Yanke
AU - Cai, Zhiyan
AU - Callegari, Riccardo
AU - Cammi, Antonio
AU - Campeny, Agustin
AU - Cao, Chuanya
AU - Cao, Guofu
AU - Lin, Guey Lin
N1 - Publisher Copyright:
© Copyright owned by the author(s).
PY - 2022/3/18
Y1 - 2022/3/18
N2 - As an underground multi-purpose neutrino detector with 20 kton liquid scintillator, Jiangmen Underground Neutrino Observatory (JUNO) is competitive with and complementary to the water-Cherenkov detectors on the search for the diffuse supernova neutrino background (DSNB). Typical supernova models predict 2-4 events per year within the optimal observation window in the JUNO detector. The dominant background is from the neutral-current (NC) interaction of atmospheric neutrinos with 12C nuclei, which surpasses the DSNB by more than one order of magnitude. We evaluated the systematic uncertainty of NC background from the spread of a variety of data-driven models and further developed a method to determine NC background within 15% with in situ measurements after ten years of running. Besides, the NC-like backgrounds can be effectively suppressed by the intrinsic pulse-shape discrimination (PSD) capabilities of liquid scintillators. In this talk, I will present in detail the improvements on NC background uncertainty evaluation, PSD discriminator development, and finally, the potential of DSNB sensitivity in JUNO.
AB - As an underground multi-purpose neutrino detector with 20 kton liquid scintillator, Jiangmen Underground Neutrino Observatory (JUNO) is competitive with and complementary to the water-Cherenkov detectors on the search for the diffuse supernova neutrino background (DSNB). Typical supernova models predict 2-4 events per year within the optimal observation window in the JUNO detector. The dominant background is from the neutral-current (NC) interaction of atmospheric neutrinos with 12C nuclei, which surpasses the DSNB by more than one order of magnitude. We evaluated the systematic uncertainty of NC background from the spread of a variety of data-driven models and further developed a method to determine NC background within 15% with in situ measurements after ten years of running. Besides, the NC-like backgrounds can be effectively suppressed by the intrinsic pulse-shape discrimination (PSD) capabilities of liquid scintillators. In this talk, I will present in detail the improvements on NC background uncertainty evaluation, PSD discriminator development, and finally, the potential of DSNB sensitivity in JUNO.
UR - http://www.scopus.com/inward/record.url?scp=85145250830&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85145250830
SN - 1824-8039
VL - 395
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 1187
T2 - 37th International Cosmic Ray Conference, ICRC 2021
Y2 - 12 July 2021 through 23 July 2021
ER -