Workshop SAD2019 3-go-kan Seminar Hall, KEK, Japan 18-19 September 2019 https://conference-indico.kek.jp/indico/event/75/ Int. Advisory Committee Maria E. Biagini (INFN) Yunhai Cai (SLAC) Laurent Deniau (CERN) Etienne Forest (KEK) Kohji Hirata (KEK) Susumu Kamada (KEK) Yukinori Kobayashi (KEK) Tsukasa Miyajima (KEK) Kazuhito Ohmi (KEK) Katsunobu Oide (CERN/KEK) David C. Sagan (Cornell U.) Noboru Yamamoto (KEK) Kaoru Yokoya (KEK) Frank Zimmermann (CERN) Local Organization Committee Yoshihiro Funakoshi Kazuro Furukawa Kentaro Harada Hiroyuki Harada (JAEA) Naoko Iida Susumu Kamada Haruyo Koiso Toshihiro Mimashi Akio Morita Takashi Obina Yukiyoshi Ohnishi (Chair) Kazuhito Ohmi Katsunobu Oide Yoichi Sato Hiroshi Sugimoto Demin Zhou