Development of a new high performance particle identification detector for the Belle-II experiment

2015 Fiscal Year Final Research Report

• Project/Area Number: 24244035
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: SUMIYOSHI Takayuki 首都大学東京, 理工学研究科, 教授 (30154628)
• Co-Investigator(Kenkyū-buntansha): ADACHI Ichiro 高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (00249898) ; KAWASAKI Takeo 新潟大学, 自然科学系, 准教授 (00323999) ; KAWAI HIdeyuki 千葉大学, 理学研究科, 准教授 (60214590) ; YUSA Yousuke 新潟大学, 自然科学系, 助教 (80612704)
• Co-Investigator(Renkei-kenkyūsha): KAKUNO Hidekazu 首都大学東京, 理工学研究科, 准教授 (70376698) ; HARA Kouji 高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (90432236) ; KUMITA Tetsuo 首都大学東京, 理工学研究科, 助教 (30271159)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 粒子識別装置 / リングイメージチェレンコフ検出器 / シリカエアロゲル / HAPD

Outline of Final Research Achievements

The Super KEKB accelerator started it operation in Feb. 2016. In the Belle II experiment that uses Super KEKB a particle identification detector plays an important role to extract expected physics performance. In this research program we developed a Ring Imaging Chrenkov detector (A-RICH) in which silica aerogel tiles are used for radiators and HAPDs as photon detectors aiming to get a 4 σ　pion/kaon separation. A prototype test using an electron beam reveals that it has enough performance as expected. Currently every elements to construct the real A-RICH detector such as aerogel tiles, HAPDs, readout electronics with ASICs, high voltage power supplies, a monitor system with optical fibers are ready for installation and we will start construction soon

Free Research Field

素粒子実験