Performance of the Belle II aerogel-based ring-imaging Cherenkov counter system in SuperKEKB 2019 phase 3 operation. (1st July 2020) - Lai, Y.-T.; Adachi, I.; Burmistrov, L.; Furui, K.; Iijima, T.; Iwata, S.; Giordano, R.; Kakuno, H.; Karyan, G.; Kawai, H.; Kawasaki, T.; Kindo, H.; et al.