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arXiv · 2405.17860

Prediction of Energy Resolution in the JUNO Experiment

JUNO Collaboration·Angel Abusleme·Thomas Adam·Kai Adamowicz·Shakeel Ahmad·Rizwan Ahmed·Sebastiano Aiello·Fengpeng An·Qi An·Giuseppe Andronico·Nikolay Anfimov·Vito Antonelli·Tatiana Antoshkina·João Pedro Athayde Marcondes de André·Didier Auguste·Weidong Bai·Nikita Balashov·Wander Baldini·Andrea Barresi·Davide Basilico·Eric Baussan·Marco Bellato·Marco Beretta·Antonio Bergnoli·Daniel Bick·Lukas Bieger·Svetlana Biktemerova·Thilo Birkenfeld·Iwan Blake·David Blum·Simon Blyth·Anastasia Bolshakova·Mathieu Bongrand·Clément Bordereau·Dominique Breton·Augusto Brigatti·Riccardo Brugnera·Riccardo Bruno·Antonio Budano·Jose Busto·Anatael Cabrera·Barbara Caccianiga·Hao Cai·Xiao Cai·Yanke Cai·Zhiyan Cai·Stéphane Callier·Steven Calvez·Antonio Cammi·Agustin Campeny·Chuanya Cao·Guofu Cao·Jun Cao·Rossella Caruso·Cédric Cerna·Vanessa Cerrone·Jinfan Chang·Yun Chang·Auttakit Chatrabhuti·Chao Chen·Guoming Chen·Pingping Chen·Shaomin Chen·Xin Chen·Yiming Chen·Yixue Chen·Yu Chen·Zelin Chen·Zhangming Chen·Zhiyuan Chen·Zikang Chen·Jie Cheng·Yaping Cheng·Yu Chin Cheng·Alexander Chepurnov·Alexey Chetverikov·Davide Chiesa·Pietro Chimenti·Yen-Ting Chin·Po-Lin Chou·Ziliang Chu·Artem Chukanov·Gérard Claverie·Catia Clementi·Barbara Clerbaux·Marta Colomer Molla·Selma Conforti Di Lorenzo·Alberto Coppi·Daniele Corti·Simon Csakli·Chenyang Cui·Flavio Dal Corso·Olivia Dalager·Jaydeep Datta·Christophe De La Taille·Zhi Deng·Ziyan Deng·Xiaoyu Ding·Xuefeng Ding·Yayun Ding
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Abstract

This paper presents an energy resolution study of the JUNO experiment, incorporating the latest knowledge acquired during the detector construction phase. The determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3\% at 1~MeV. To achieve this ambitious goal, significant efforts have been undertaken in the design and production of the key components of the JUNO detector. Various factors affecting the detection of inverse beta decay signals have an impact on the energy resolution, extending beyond the statistical fluctuations of the detected number of photons, such as the properties of the liquid scintillator, performance of photomultiplier tubes, and the energy reconstruction algorithm. To account for these effects, a full JUNO simulation and reconstruction approach is employed. This enables the modeling of all relevant effects and the evaluation of associated inputs to accurately estimate the energy resolution. The results of study reveal an energy resolution of 2.95\% at 1~MeV. Furthermore, this study assesses the contribution of major effects to the overall energy resolution budget. This analysis serves as a reference for interpreting future measurements of energy resolution during JUNO data collection. Moreover, it provides a guideline for comprehending the energy resolution characteristics of liquid scintillator-based detectors.

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JUNO Collaboration, Angel Abusleme, Thomas Adam, Kai Adamowicz, Shakeel Ahmad, Rizwan Ahmed, Sebastiano Aiello, Fengpeng An, Qi An, Giuseppe Andronico, Nikolay Anfimov, Vito Antonelli, Tatiana Antoshkina, João Pedro Athayde Marcondes de André, Didier Auguste, Weidong Bai, Nikita Balashov, Wander Baldini, Andrea Barresi, Davide Basilico, Eric Baussan, Marco Bellato, Marco Beretta, Antonio Bergnoli, Daniel Bick, Lukas Bieger, Svetlana Biktemerova, Thilo Birkenfeld, Iwan Blake, David Blum, Simon Blyth, Anastasia Bolshakova, Mathieu Bongrand, Clément Bordereau, Dominique Breton, Augusto Brigatti, Riccardo Brugnera, Riccardo Bruno, Antonio Budano, Jose Busto, Anatael Cabrera, Barbara Caccianiga, Hao Cai, Xiao Cai, Yanke Cai, Zhiyan Cai, Stéphane Callier, Steven Calvez, Antonio Cammi, Agustin Campeny, Chuanya Cao, Guofu Cao, Jun Cao, Rossella Caruso, Cédric Cerna, Vanessa Cerrone, Jinfan Chang, Yun Chang, Auttakit Chatrabhuti, Chao Chen, Guoming Chen, Pingping Chen, Shaomin Chen, Xin Chen, Yiming Chen, Yixue Chen, Yu Chen, Zelin Chen, Zhangming Chen, Zhiyuan Chen, Zikang Chen, Jie Cheng, Yaping Cheng, Yu Chin Cheng, Alexander Chepurnov, Alexey Chetverikov, Davide Chiesa, Pietro Chimenti, Yen-Ting Chin, Po-Lin Chou, Ziliang Chu, Artem Chukanov, Gérard Claverie, Catia Clementi, Barbara Clerbaux, Marta Colomer Molla, Selma Conforti Di Lorenzo, Alberto Coppi, Daniele Corti, Simon Csakli, Chenyang Cui, Flavio Dal Corso, Olivia Dalager, Jaydeep Datta, Christophe De La Taille, Zhi Deng, Ziyan Deng, Xiaoyu Ding, Xuefeng Ding, Yayun Ding. 2024-05-28. Prediction of Energy Resolution in the JUNO Experiment. https://doi.org/10.1088/1674-1137/ad83aa

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