The Jiangmen Underground Neutrino Observatory (JUNO) features a 20 kt multi-purpose underground liquid scintillator sphere as its main detector. Some of JUNO's features make it an excellent experiment for B solar neutrino measurements, such as its low-energy threshold, its high energy resolution compared to water Cherenkovdetectors, and its much larger target mass compared to previous liquid scintillator detectors. In this paper we present a comprehensive assessment of JUNO's potential for detecting B solar neutrinos via the neutrino-electron elastic scattering process. A reduced 2 MeV threshold on the recoil electron energy is found to be achievable assuming the intrinsic radioactive background U and Th in the liquid scintillator can be controlled to 10 g/g. With ten years of data taking, about 60,000 signal and 30,000 background events are expected. This large sample will enable an examination of the distortion of the recoil electron spectrum that is dominated by the neutrino flavor transformation in the dense solar matter, which will shed new light on the inconsistency between the measured electron spectra and the predictions of the standard three-flavor neutrino oscillation framework. If eV , JUNO can provide evidence of neutrino oscillation in the Earth at the about 3 (2 ) level by measuring the non-zero signal rate variation with respect to the solar zenith angle. Moreover, JUNO can simultaneously measure using B solar neutrinos to a precision of 20% or better depending on the central value and to sub-percent precision using reactor antineutrinos. A comparison of these two measurements from the same detector will help understand the current mild inconsistency between the value of reported by solar neutrino experiments and the KamLAND experiment.

Feasibility and physics potential of detecting 8B solar neutrinos at JUNO

Baldini, Wander;Mantovani, Fabio;Montuschi, Michele;Ricci, Barbara;Serafini, Andrea;Strati, Virginia;
2021

Abstract

The Jiangmen Underground Neutrino Observatory (JUNO) features a 20 kt multi-purpose underground liquid scintillator sphere as its main detector. Some of JUNO's features make it an excellent experiment for B solar neutrino measurements, such as its low-energy threshold, its high energy resolution compared to water Cherenkovdetectors, and its much larger target mass compared to previous liquid scintillator detectors. In this paper we present a comprehensive assessment of JUNO's potential for detecting B solar neutrinos via the neutrino-electron elastic scattering process. A reduced 2 MeV threshold on the recoil electron energy is found to be achievable assuming the intrinsic radioactive background U and Th in the liquid scintillator can be controlled to 10 g/g. With ten years of data taking, about 60,000 signal and 30,000 background events are expected. This large sample will enable an examination of the distortion of the recoil electron spectrum that is dominated by the neutrino flavor transformation in the dense solar matter, which will shed new light on the inconsistency between the measured electron spectra and the predictions of the standard three-flavor neutrino oscillation framework. If eV , JUNO can provide evidence of neutrino oscillation in the Earth at the about 3 (2 ) level by measuring the non-zero signal rate variation with respect to the solar zenith angle. Moreover, JUNO can simultaneously measure using B solar neutrinos to a precision of 20% or better depending on the central value and to sub-percent precision using reactor antineutrinos. A comparison of these two measurements from the same detector will help understand the current mild inconsistency between the value of reported by solar neutrino experiments and the KamLAND experiment.
2021
Abusleme, Angel; Adam, Thomas; Ahmad, Shakeel; Aiello, Sebastiano; Akram, Muhammad; Ali, Nawab; An, Fengpeng; An, Guangpeng; An, Qi; Andronico, Giuseppe; Anfimov, Nikolay; Antonelli, Vito; Antoshkina, Tatiana; Asavapibhop, Burin; de André, João Pedro Athayde Marcondes; Auguste, Didier; Babic, Andrej; Baldini, Wander; Barresi, Andrea; Baussan, Eric; Bellato, Marco; Bergnoli, Antonio; Bernieri, Enrico; Biare, David; Birkenfeld, Thilo; Blin, Sylvie; Blum, David; Blyth, Simon; Bolshakova, Anastasia; Bongrand, Mathieu; Bordereau, Clément; Breton, Dominique; Brigatti, Augusto; Brugnera, Riccardo; Bruno, Riccardo; Budano, Antonio; Buesken, Max; Buscemi, Mario; Busto, Jose; Butorov, Ilya; Cabrera, Anatael; Cai, Hao; Cai, Xiao; Cai, Yanke; Cai, Zhiyan; Cammi, Antonio; Campeny, Agustin; Cao, Chuanya; Cao, Guofu; Cao, Jun; Caruso, Rossella; Cerna, Cédric; Chang, Jinfan; Chang, Yun; Chen, Pingping; Chen, Po-An; Chen, Shaomin; Chen, Shenjian; Chen, Xurong; Chen, Yi-Wen; Chen, Yixue; Chen, Yu; Chen, Zhang; Cheng, Jie; Cheng, Yaping; Chepurnov, Alexander; Chiesa, Davide; Chimenti, Pietro; Chukanov, Artem; Chuvashova, Anna; Claverie, Gérard; Clementi, Catia; Clerbaux, Barbara; Lorenzo, Selma Conforti Di; Corti, Daniele; Costa, Salvatore; Corso, Flavio Dal; Taille, Christophe De La; Deng, Jiawei; Deng, Zhi; Deng, Ziyan; Depnering, Wilfried; Diaz, Marco; Ding, Xuefeng; Ding, Yayun; Dirgantara, Bayu; Dmitrievsky, Sergey; Dohnal, Tadeas; Donchenko, Georgy; Dong, Jianmeng; Dornic, Damien; Doroshkevich, Evgeny; Dracos, Marcos; Druillole, Frédéric; Du, Shuxian; Dusini, Stefano; Dvorak, Martin; Enqvist, Timo; Enzmann, Heike; Fabbri, Andrea; Fajt, Lukas; Fan, Donghua; Fan, Lei; Fang, Can; Fang, Jian; Fargetta, Marco; Fatkina, Anna; Fedoseev, Dmitry; Fekete, Vladko; Feng, Li-Cheng; Feng, Qichun; Ford, Richard; Formozov, Andrey; Fournier, Amélie; Gan, Haonan; Gao, Feng; Garfagnini, Alberto; Göttel, Alexandre; Genster, Christoph; Giammarchi, Marco; Giaz, Agnese; Giudice, Nunzio; Giuliani, Franco; Gonchar, Maxim; Gong, Guanghua; Gong, Hui; Gorchakov, Oleg; Gornushkin, Yuri; Grassi, Marco; Grewing, Christian; Gromov, Maxim; Gromov, Vasily; Gu, Minghao; Gu, Xiaofei; Gu, Yu; Guan, Mengyun; Guardone, Nunzio; Gul, Maria; Guo, Cong; Guo, Jingyuan; Guo, Wanlei; Guo, Xinheng; Guo, Yuhang; Hackspacher, Paul; Hagner, Caren; Han, Ran; Han, Yang; He, Miao; He, Wei; Heinz, Tobias; Hellmuth, Patrick; Heng, Yuekun; Herrera, Rafael; Hong, Daojin; Hor, Yuenkeung; Hou, Shaojing; Hsiung, Yee; Hu, Bei-Zhen; Hu, Hang; Hu, Jianrun; Hu, Jun; Hu, Shouyang; Hu, Tao; Hu, Zhuojun; Huang, Chunhao; Huang, Guihong; Huang, Hanxiong; Huang, Qinhua; Huang, Wenhao; Huang, Xingtao; Huang, Yongbo; Hui, Jiaqi; Huo, Wenju; Huss, Cédric; Hussain, Safeer; Insolia, Antonio; Ioannisian, Ara; Ioannisyan, Daniel; Isocrate, Roberto; Jen, Kuo-Lun; Ji, Xiaolu; Ji, Xingzhao; Jia, Huihui; Jia, Junji; Jian, Siyu; Jiang, Di; Jiang, Xiaoshan; Jin, Ruyi; Jing, Xiaoping; Jollet, Cécile; Joutsenvaara, Jari; Jungthawan, Sirichok; Kalousis, Leonidas; Kampmann, Philipp; Kang, Li; Karagounis, Michael; Kazarian, Narine; Khan, Amir; Khan, Waseem; Khosonthongkee, Khanchai; Kinz, Patrick; Korablev, Denis; Kouzakov, Konstantin; Krasnoperov, Alexey; Krokhaleva, Svetlana; Krumshteyn, Zinovy; Kruth, Andre; Kutovskiy, Nikolay; Kuusiniemi, Pasi; Lachenmaier, Tobias; Landini, Cecilia; Leblanc, Sébastien; Lefevre, Frederic; Lei, Liping; Lei, Ruiting; Leitner, Rupert; Leung, Jason; Li, Demin; Li, Fei; Li, Fule; Li, Haitao; Li, Huiling; Li, Jiaqi; Li, Jin; Li, Kaijie; Li, Mengzhao; Li, Nan; Li, Nan; Li, Qingjiang; Li, Ruhui; Li, Shanfeng; Li, Shuaijie; Li, Tao; Li, Weidong; Li, Weiguo; Li, Xiaomei; Li, Xiaonan; Li, Xinglong; Li, Yi; Li, Yufeng; Li, Zhibing; Li, Ziyuan; Liang, Hao; Liang, Hao; Liang, Jingjing; Liao, Jiajun; Liebau, Daniel; Limphirat, Ayut; Limpijumnong, Sukit; Lin, Guey-Lin; Lin, Shengxin; Lin, Tao; Ling, Jiajie; Lippi, Ivano; Liu, Fang; Liu, Haidong; Liu, Hongbang; Liu, Hongjuan; Liu, Hongtao; Liu, Hu; Liu, Hui; Liu, Jianglai; Liu, Jinchang; Liu, Min; Liu, Qian; Liu, Qin; Liu, Runxuan; Liu, Shuangyu; Liu, Shubin; Liu, Shulin; Liu, Xiaowei; Liu, Yan; Lokhov, Alexey; Lombardi, Paolo; Lombardo, Claudio; Loo, Kai; Lu, Chuan; Lu, Haoqi; Lu, Jingbin; Lu, Junguang; Lu, Shuxiang; Lu, Xiaoxu; Lubsandorzhiev, Bayarto; Lubsandorzhiev, Sultim; Ludhova, Livia; Luo, Fengjiao; Luo, Guang; Luo, Pengwei; Luo, Shu; Luo, Wuming; Lyashuk, Vladimir; Ma, Qiumei; Ma, Si; Ma, Xiaoyan; Ma, Xubo; Maalmi, Jihane; Malyshkin, Yury; Mantovani, Fabio; Manzali, Francesco; Mao, Xin; Mao, Yajun; M. Mari, Stefano; Marini, Filippo; Marium, Sadia; Martellini, Cristina; Martin-Chassard, Gisele; Martini, Agnese; Mayilyan, Davit; Müller, Axel; Mednieks, Ints; Meng, Yue; Meregaglia, Anselmo; Meroni, Emanuela; Meyhöfer, David; Mezzetto, Mauro; Miller, Jonathan; Miramonti, Lino; Monforte, Salvatore; Montini, Paolo; Montuschi, Michele; Morozov, Nikolay; Muralidharan, Pavithra; Nastasi, Massimiliano; Naumov, Dmitry V.; Naumova, Elena; Nemchenok, Igor; Nikolaev, Alexey; Ning, Feipeng; Ning, Zhe; Nunokawa, Hiroshi; Oberauer, Lothar; Ochoa-Ricoux, Juan Pedro; Olshevskiy, Alexander; Orestano, Domizia; Ortica, Fausto; Pan, Hsiao-Ru; Paoloni, Alessandro; Parkalian, Nina; Parmeggiano, Sergio; Payupol, Teerapat; Pei, Yatian; Pelliccia, Nicomede; Peng, Anguo; Peng, Haiping; Perrot, Frédéric; Petitjean, Pierre-Alexandre; Petrucci, Fabrizio; Piñeres Rico, Luis Felipe; Pilarczyk, Oliver; Popov, Artyom; Poussot, Pascal; Pratumwan, Wathan; Previtali, Ezio; Qi, Fazhi; Qi, Ming; Qian, Sen; Qian, Xiaohui; Qiao, Hao; Qin, Zhonghua; Qiu, Shoukang; Rajput, Muhammad; Ranucci, Gioacchino; Raper, Neill; Re, Alessandra; Rebber, Henning; Rebii, Abdel; Ren, Bin; Ren, Jie; Rezinko, Taras; Ricci, Barbara; Robens, Markus; Roche, Mathieu; Rodphai, Narongkiat; Romani, Aldo; Roskovec, Bedřich; Roth, Christian; Ruan, Xiangdong; Ruan, Xichao; Rujirawat, Saroj; Rybnikov, Arseniy; Sadovsky, Andrey; Saggese, Paolo; Salamanna, Giuseppe; Sanfilippo, Simone; Sangka, Anut; Sanguansak, Nuanwan; Sawangwit, Utane; Sawatzki, Julia; Sawy, Fatma; Schever, Michaela; Schuler, Jacky; Schwab, Cédric; Schweizer, Konstantin; Selivanov, Dmitry; Selyunin, Alexandr; Serafini, Andrea; Settanta, Giulio; Settimo, Mariangela; Shahzad, Muhammad; Sharov, Vladislav; Shi, Gang; Shi, Jingyan; Shi, Yongjiu; Shutov, Vitaly; Sidorenkov, Andrey; Šimkovic, Fedor; Sirignano, Chiara; Siripak, Jaruchit; Sisti, Monica; Slupecki, Maciej; Smirnov, Mikhail; Smirnov, Oleg; Sogo-Bezerra, Thiago; Songwadhana, Julanan; Soonthornthum, Boonrucksar; Sotnikov, Albert; Sramek, Ondrej; Sreethawong, Warintorn; Stahl, Achim; Stanco, Luca; Stankevich, Konstantin; Štefánik, Dušan; Steiger, Hans; Steinmann, Jochen; Sterr, Tobias; Stock, Matthias Raphael; Strati, Virginia; Studenikin, Alexander; Sun, Gongxing; Sun, Shifeng; Sun, Xilei; Sun, Yongjie; Sun, Yongzhao; Suwonjandee, Narumon; Szelezniak, Michal; Tang, Jian; Tang, Qiang; Tang, Quan; Tang, Xiao; Tietzsch, Alexander; Tkachev, Igor; Tmej, Tomas; Treskov, Konstantin; Triossi, Andrea; Troni, Giancarlo; Trzaska, Wladyslaw; Tuve, Cristina; van Waasen, Stefan; Boom, Johannes van den; Vanroyen, Guillaume; Vassilopoulos, Nikolaos; Vedin, Vadim; Verde, Giuseppe; Vialkov, Maxim; Viaud, Benoit; Volpe, Cristina; Vorobel, Vit; Votano, Lucia; Walker, Pablo; Wang, Caishen; Wang, Chung-Hsiang; Wang, En; Wang, Guoli; Wang, Jian; Wang, Jun; Wang, Kunyu; Wang, Lu; Wang, Meifen; Wang, Meng; Wang, Meng; Wang, Ruiguang; Wang, Siguang; Wang, Wei; Wang, Wei; Wang, Wenshuai; Wang, Xi; Wang, Xiangyue; Wang, Yangfu; Wang, Yaoguang; Wang, Yi; Wang, Yi; Wang, Yifang; Wang, Yuanqing; Wang, Yuman; Wang, Zhe; Wang, Zheng; Wang, Zhimin; Wang, Zongyi; Watcharangkool, Apimook; Wei, Lianghong; Wei, Wei; Wei, Yadong; Wen, Liangjian; Wiebusch, Christopher; Wong, Steven Chan-Fai; Wonsak, Bjoern; Wu, Diru; Wu, Fangliang; Wu, Qun; Wu, Wenjie; Wu, Zhi; Wurm, Michael; Wurtz, Jacques; Wysotzki, Christian; Xi, Yufei; Xia, Dongmei; Xie, Yuguang; Xie, Zhangquan; Xing, Zhizhong; Xu, Benda; Xu, Donglian; Xu, Fanrong; Xu, Jilei; Xu, Jing; Xu, Meihang; Xu, Yin; Xu, Yu; Yan, Baojun; Yan, Xiongbo; Yan, Yupeng; Yang, Anbo; Yang, Changgen; Yang, Huan; Yang, Jie; Yang, Lei; Yang, Xiaoyu; Yang, Yifan; Yao, Haifeng; Yasin, Zafar; Ye, Jiaxuan; Ye, Mei; Yegin, Ugur; Yermia, Frédéric; Yi, Peihuai; Yin, Xiangwei; You, Zhengyun; Yu, Boxiang; Yu, Chiye; Yu, Chunxu; Yu, Hongzhao; Yu, Miao; Yu, Xianghui; Yu, Zeyuan; Yuan, Chengzhuo; Yuan, Ying; Yuan, Zhenxiong; Yuan, Ziyi; Yue, Baobiao; Zafar, Noman; Zambanini, Andre; Zeng, Pan; Zeng, Shan; Zeng, Tingxuan; Zeng, Yuda; Zhan, Liang; Zhang, Feiyang; Zhang, Guoqing; Zhang, Haiqiong; Zhang, Honghao; Zhang, Jiawen; Zhang, Jie; Zhang, Jingbo; Zhang, Peng; Zhang, Qingmin; Zhang, Shiqi; Zhang, Tao; Zhang, Xiaomei; Zhang, Xuantong; Zhang, Yan; Zhang, Yinhong; Zhang, Yiyu; Zhang, Yongpeng; Zhang, Yuanyuan; Zhang, Yumei; Zhang, Zhenyu; Zhang, Zhijian; Zhao, Fengyi; Zhao, Jie; Zhao, Rong; Zhao, Shujun; Zhao, Tianchi; Zheng, Dongqin; Zheng, Hua; Zheng, Minshan; Zheng, Yangheng; Zhong, Weirong; Zhou, Jing; Zhou, Li; Zhou, Nan; Zhou, Shun; Zhou, Xiang; Zhu, Jiang; Zhu, Kejun; Zhuang, Honglin; Zong, Liang; Zou, ; Jiaheng (JUNO, Collaboration); Null,
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