Gamma rays from a reverse shock with turbulent magnetic fields in GRB 180720B

Makoto Arimoto, Katsuaki Asano, Koji S. Kawabata, Kenji Toma, Ramandeep Gill, Jonathan Granot, Masanori Ohno, Shuta Takahashi, Naoki Ogino, Hatsune Goto, Kengo Nakamura, Tatsuya Nakaoka, Kengo Takagi, Miho Kawabata, Masayuki Yamanaka, Mahito Sasada, Soebur Razzaque