MOP050 　粒子源　 8月8日 コンベンションホール 13:10 - 15:10

ミューオンg-2/EDM実験のためのRFQを用いたミューオン初期加速の現状

Current status of the muon initial acceleration with RFQ for muon g-2/EDM experiment

○北村 遼（東大理），大谷 将士，深尾 祥紀，河村 成肇，三部 勉，三宅 康博，下村 浩一郎（KEK），近藤 恭弘，長谷川 和男（JAEA），石田 勝彦（理研），Kim BongHo（SNU），半澤 光平（総研大），齋藤 直人（J-PARCセンター）

○Ryo Kitamura (Univ. of Tokyo), Masashi Otani, Yoshinori Fukao, Naritoshi Kawamura, Tsutomu Mibe, Yasuhiro Miyake, Koichiro Shimomura (KEK), Yasuhiro Kondo, Kazuo Hasegawa (JAEA), Katsuhiko Ishida (RIKEN), Bongho Kim (SNU), Kohei Hanzawa (Sokendai), Naohito Saito (J-PARC)

The muon anomalous magnetic moment (g-2) has a difference of approximately three standard deviations between the experimental value and the standard model (SM) prediction. More precise measurement is required since it implies an evidence of the physics beyond SM. The J-PARC E34 experiment aims to measure muon g-2 with a statistical uncertainty of 0.1 ppm using novel techniques. Muon linear accelerator is one of the most important techniques for our experiment. As the first trial of the muon acceleration, the muon initial acceleration with the J-PARC RFQ-� plans to be demonstrated at the muon H-line in J-PARC MLF. First, the incident muons with an energy of 4 MeV are decelerated to sub-keV with the thin metal foil. The decelerated muons are extracted and accelerated to 5.6 keV by the electro-static field. Then the muons are injected to the RFQ and accelerated to 0.34 MeV. We conducted the muon beam experiments towards the muon initial acceleration in February 2016. We succeeded to demonstrate the muon deceleration and electro-static acceleration. In this poster, the beam test results and prospects for the muon acceleration with RFQ will be reported.