[1] KEK, High Energy Accelerator Res Org, Ibaraki 3191106, Japan
[2] Seoul Natl Univ, Seoul 08826, South Korea
[3] Inst Nucl & Particle Astrophys, Seoul 08826, South Korea
[4] Univ Victoria, Victoria, BC V8W 2Y2, Canada
[5] UNIST, Ulsan 44919, South Korea
[6] UPMC, CNRS, IN2P3, LPNHE,UDD, F-75005 Paris, France
[7] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[8] Novosibirsk State Univ, Novosibirsk 630090, Russia
[9] RAS, Lebedev Phys Inst, Moscow 119333, Russia
[10] Charles Univ Prague, Prague 11000, Czech Republic
[11] Osaka Univ, RCNP, Osaka 5670047, Japan
[12] Inst for Basic Sci Korea, Daejeon 34126, South Korea
[13] JAEA, Ibaraki 3191195, Japan
[14] Niigata Univ, Niigata 9502181, Japan
[15] Tokyo Inst Technol, Tokyo 1528550, Japan
[16] Nagoya Univ, Nagoya, Aichi 4648601, Japan
[17] Ibaraki Univ, Ibaraki 3108502, Japan
[18] Japan Aerosp Explorat Agcy JAXA, Tokyo 2298510, Japan
[19] RIKEN, Saitama 3510198, Japan
[20] Osaka Univ, Sch Sci, Grad Sch, Osaka 5600043, Japan
[21] Kyoto Univ, ICR, Kyoto 6110011, Japan
[22] NIRS, Chiba 2630024, Japan
[23] Univ British Columbia, Vancouver, BC V6T 1Z4, Canada
[24] Kyushu Univ, Fukuoka, Fukuoka 8190395, Japan
[25] Korea Adv Inst Sci & Technol, Daejeon 305701, South Korea
[26] Korea Univ, Seoul 02841, South Korea
[27] TRIUMF, Vancouver, BC V6T 2A3, Canada
[28] Univ Tokyo, Grad Sch Arts & Sci, Tokyo 1538902, Japan
[29] Grad Univ Adv Studies SOKENDAI, Ibaraki 3050801, Japan
[30] J PARC Ctr, Ibaraki 3191106, Japan
[31] RAS, Budker Inst Nucl Phys SB, Novosibirsk 630090, Russia
[32] Univ Tokyo, Grad Sch Sci, Tokyo 1130033, Japan