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@article{SATO2024169926,
title = {Design and construction of the cylindrical drift chamber for the COMET Phase-I experiment},
journal = {Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
volume = {1069},
pages = {169926},
year = {2024},
issn = {0168-9002},
doi = {https://doi.org/10.1016/j.nima.2024.169926},
url = {https://www.sciencedirect.com/science/article/pii/S0168900224008520},
author = {A. Sato and H. Yoshida and M. Moritsu and X. Jiang and Y. Kuno and H.-B. Li and W.-G. Li and Y. Matsuda and H. Miao and Y. Nakamura and Y. Nakatsugawa and Y. Nakazawa and S. Ohta and K. Okinaka and H. Sakamoto and M.L. Wong and T.S. Wong and C. Wu and T.-Y. Xing and T. Yamane and Y. Yuan and J. Zhang and Y. Zhang and Z.-K. Zhang},
keywords = {Gas detector, Drift chamber, Cylindrical detector, Muon, Particle physics, Lepton-flavor violation},
abstract = {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-C4H10 (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.}
}