Design and construction of the cylindrical drift chamber for the COMET Phase-I experiment
COMET is an experiment at J-PARC that searches for the charged lepton flavor violating process of neutrino-less muon-to-electron conversion ( μ → e conversion) in a muonic atom. The COMET Phase-I experiment, which represents the first stage of its staged approach, utilizes the cylindrical drift chamber (CDC) as the main detector to measure the momentum of electrons emitted from μ → e conversion in a 1 T magnetic field. The CDC is designed for optimal performance to achieve the best momentum resolution and effectively separate the μ → e conversion electron signal from background signals. This design entails adapting He:i-C 4 H 10 (90:10) as its chamber gas and employing an all-stereo wire configuration. This document provides a comprehensive overview of the CDC detector, encompassing design considerations, mechanical structure, construction methodologies, and results of performance evaluations conducted using cosmic-rays.
Authors
- Y. Nakatsugawa
- Y. Matsuda
- S. Ohta
- Y. Nakazawa (ORCID: https://orcid.org/0000-0002-6271-5808)
- Xingliang Jiang (ORCID: https://orcid.org/0000-0002-3567-6559)
- Y. Kuno (ORCID: https://orcid.org/0000-0002-5512-2641)
- Manabu Moritsu (ORCID: https://orcid.org/0000-0001-6357-0543)
- T. Yamane
- Z.-K. Zhang
- Tuck Seng Wong
- T. Y. Xing (ORCID: https://orcid.org/0009-0005-2294-1068)
- Ming-Liang Wong (ORCID: https://orcid.org/0000-0002-9530-1222)
- Hisataka Yoshida (ORCID: https://orcid.org/0000-0002-7034-6360)
- H. Miao (ORCID: https://orcid.org/0000-0002-1936-5400)
- K. Okinaka
- Yao Zhang
- Juan Zhang (ORCID: https://orcid.org/0000-0001-8869-0672)
- Hao‐Bo Li (ORCID: https://orcid.org/0000-0002-0277-0848)
- Chen Wu (ORCID: https://orcid.org/0000-0001-9287-2225)
- Weiguo Li (ORCID: https://orcid.org/0000-0002-7558-1546)
- Atsushi Sato (ORCID: https://orcid.org/0000-0003-1375-8999)
- Yuto Nakamura (ORCID: https://orcid.org/0009-0001-7909-8674)
- H. Sakamoto
- Y. Yuan (ORCID: https://orcid.org/0000-0002-5922-7934)
Institutions
- Kyushu University (JP)
- High Energy Accelerator Research Organization (JP)
- Wakayama Medical University (JP)
- Chinese Academy of Sciences (CN)
- China Spallation Neutron Source (CN)
- Institute of High Energy Physics (CN)
- University of Chinese Academy of Sciences (CN)
- The University of Osaka (JP)
Publication Details
- Journal
- Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
- Published
- 2024-09-30
- DOI
- https://doi.org/10.1016/j.nima.2024.169926
- Citations
- 1
- Primary Topic
- Particle Detector Development and Performance
- Type
- article
- Field-Weighted Citation Impact
- 0.66
Funders
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- Natural Science Foundation of Beijing Municipality
- Japan Society for the Promotion of Science