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The COMET experiment at J-PARC, Japan, aims to search for muon to electron conversion with aluminium nuclei, achieving a sensitivity four orders of magnitude higher than the current upper limit at a 90% confidence level. The proton beam…

High Energy Physics - Experiment · Physics 2023-08-29 Yuki Fujii

The Technical Design for the COMET Phase-I experiment is presented in this paper. COMET is an experiment at J-PARC, Japan, which will search for neutrinoless conversion of muons into electrons in the field of an aluminium nucleus ($\mu-e$…

Instrumentation and Detectors · Physics 2020-05-20 The COMET Collaboration , R. Abramishvili , G. Adamov , R. R. Akhmetshin , A. Allin , J. C. Angélique , V. Anishchik , M. Aoki , D. Aznabayev , I. Bagaturia , G. Ban , Y. Ban , D. Bauer , D. Baygarashev , A. E. Bondar , C. Cârloganu , B. Carniol , T. T. Chau , J. K. Chen , S. J. Chen , Y. E. Cheung , W. da Silva , P. D. Dauncey , C. Densham , G. Devidze , P. Dornan , A. Drutskoy , V. Duginov , Y. Eguchi , L. B. Epshteyn , P. Evtoukhovich , S. Fayer , G. V. Fedotovich , M. Finger , M. Finger , Y. Fujii , Y. Fukao , J. L. Gabriel , P. Gay , E. Gillies , D. N. Grigoriev , K. Gritsay , V. H. Hai , E. Hamada , I. H. Hashim , S. Hashimoto , O. Hayashi , T. Hayashi , T. Hiasa , Z. A. Ibrahim , Y. Igarashi , F. V. Ignatov , M. Iio , K. Ishibashi , A. Issadykov , T. Itahashi , A. Jansen , X. S. Jiang , P. Jonsson , T. Kachelhoffer , V. Kalinnikov , E. Kaneva , F. Kapusta , H. Katayama , K. Kawagoe , R. Kawashima , N. Kazak , V. F. Kazanin , O. Kemularia , A. Khvedelidze , M. Koike , T. Kormoll , G. A. Kozlov , A. N. Kozyrev , M. Kravchenko , B. Krikler , G. Kumsiashvili , Y. Kuno , Y. Kuriyama , Y. Kurochkin , A. Kurup , B. Lagrange , J. Lai , M. J. Lee , H. B. Li , R. P. Litchfield , W. G. Li , T. Loan , D. Lomidze , I. Lomidze , P. Loveridge , G. Macharashvili , Y. Makida , Y. J. Mao , O. Markin , Y. Matsuda , A. Melkadze , A. Melnik , T. Mibe , S. Mihara , N. Miyamoto , Y. Miyazaki , F. Mohamad Idris , K. A. Mohamed Kamal Azmi , A. Moiseenko , M. Moritsu , Y. Mori , T. Motoishi , H. Nakai , Y. Nakai , T. Nakamoto , Y. Nakamura , Y. Nakatsugawa , Y. Nakazawa , J. Nash , H. Natori , V. Niess , M. Nioradze , H. Nishiguchi , K. Noguchi , T. Numao , J. O'Dell , T. Ogitsu , S. Ohta , K. Oishi , K. Okamoto , T. Okamura , K. Okinaka , C. Omori , T. Ota , J. Pasternak , A. Paulau , D. Picters , V. Ponariadov , G. Quémener , A. A. Ruban , V. Rusinov , B. Sabirov , H. Sakamoto , P. Sarin , K. Sasaki , A. Sato , J. Sato , Y. K. Semertzidis , N. Shigyo , Dz. Shoukavy , M. Slunecka , D. Stöckinger , M. Sugano , T. Tachimoto , T. Takayanagi , M. Tanaka , J. Tang , C. V. Tao , A. M. Teixeira , Y. Tevzadze , T. Thanh , J. Tojo , S. S. Tolmachev , M. Tomasek , M. Tomizawa , T. Toriashvili , H. Trang , I. Trekov , Z. Tsamalaidze , N. Tsverava , T. Uchida , Y. Uchida , K. Ueno , E. Velicheva , A. Volkov , V. Vrba , W. A. T. Wan Abdullah , P. Warin-Charpentier , M. L. Wong , T. S. Wong , C. Wu , T. Y. Xing , H. Yamaguchi , A. Yamamoto , M. Yamanaka , T. Yamane , Y. Yang , T. Yano , W. C. Yao , B. Yeo , H. Yoshida , M. Yoshida , T. Yoshioka , Y. Yuan , Yu. V. Yudin , M. V. Zdorovets , J. Zhang , Y. Zhang , K. Zuber

An implementation of A Common Tracking Software (ACTS) toolkit for signal electron reconstruction for the COMET muon to electron conversion experiment is discussed. The COMET experiment in J-PARC, Japan, will search for neutrinoless…

High Energy Physics - Experiment · Physics 2024-01-17 Amaia Razquin , MyeongJae Lee

Charged Lepton Flavor Violation is expected to be one of the most powerful tools to reveal physics beyond the Standard Model. The COMET experiment aims to search for the neutrinoless coherent transition of a muon into an electron in the…

High Energy Physics - Experiment · Physics 2022-03-29 Manabu Moritsu

The COMET experiment, conducted at J-PARC, aims to search for muon-to-electron conversion with an unprecedentedly high sensitivity. One of the severest backgrounds in the Phase-I experiment originates from cosmic-ray muons. A cosmic muon…

High Energy Physics - Experiment · Physics 2025-08-22 Manabu Moritsu , Hai-Bo Li , Tianyu Xing , Ye Yuan , Yao Zhang

The cosmic ray veto (CRV) detector of the Mu2e experiment consists of four layers of plastic scintillation counters that surround the detector solenoid. These counters are embedded with wavelength-shifting fibers and are read out by silicon…

We have re-purposed portable plastic scintillator muon detectors, designed by the CosmicWatch project, for the measurement of electrons emitted by the decay of radioactive sources. For the latter purpose we have first calibrated the…

Instrumentation and Detectors · Physics 2019-08-20 Joaquin Masias , Franco Delgado , Lucía Coll , Alicia Pérez , José Bazo , Alberto Gago

The NUCLEUS experiment aims to measure coherent elastic neutrino nucleus scattering of reactor anti-neutrinos using cryogenic calorimeters. Operating at an overburden of 3 m.w.e., muon-induced backgrounds are expected to be one of the…

Forbidden in the Standard Model, Charged Lepton Flavour Violation is a strong probe for New Physics. The COMET Experiment will measure one of these processes: that of COherent Muon to Electron Transitions, where a muon converts to an…

Instrumentation and Detectors · Physics 2015-12-31 Benjamin Edward Krikler

We have studied the muon decay energy spectrum from a sample of stopping muon events acquired during the test run of the ICARUS T600 prototype. This detector allows the spatial reconstruction of the events with fine granularity, hence the…

High Energy Physics - Experiment · Physics 2011-09-13 Javier Rico

COMET is a leading experiment to search for coherent conversion of $\mu^- \mathrm{N}\to e^- \mathrm{N}$ with a high-intensity pulsed muon beamline, produced by the innovative slow extraction techniques. Therefore, it is critical to measure…

Instrumentation and Detectors · Physics 2023-09-18 Yu Xu , Yunsong Ning , Zhizhen Qin , Yao Teng , Changqing Feng , Jian Tang , Yu Chen , Yoshinori Fukao , Satoshi Mihara , Kou Oishi

Examples are given which prove the ICARUS detector quality through relevant physics measurements. We study the muon decay energy spectrum from a sample of stopping muon events acquired during the test run of the ICARUS T600 detector. This…

High Energy Physics - Experiment · Physics 2012-08-27 ICARUS Collaboration

A new type of resistive plate chamber (RPC) is under development using thin-film resistive electrodes based on diamond-like carbon (DLC). Planned to be put on the path of high-intensity low-momentum muon beam of the MEG II experiment, this…

Instrumentation and Detectors · Physics 2022-12-21 Atsushi Oya , Kei Ieki , Atsuhiko Ochi , Rina Onda , Wataru Ootani , Kensuke Yamamoto

The experimental search for coherent neutrinoless conversion of muon to electron in the presence of a nucleus, aims to probe the possibility of charged lepton flavour violation. The COMET experiment at J-PARC is one such setup offering…

High Energy Physics - Experiment · Physics 2022-01-14 D. Mulmule

The 50~kton Iron Calorimeter (ICAL) detector at the underground India based Neutrino Observatory (INO) will make measurements on atmospheric neutrinos. Muons produced in charged current (CC) interactions of muon neutrinos with the iron are…

Instrumentation and Detectors · Physics 2014-10-22 N. Dash , V. M. Datar , G. Majumder

We present the results of the charge ratio ($R$) and polarization ($P^{\mu}_{0}$) measurements using the decay electron events collected from 2008 September to 2022 June by the Super-Kamiokande detector. Because of its underground location…

High Energy Physics - Experiment · Physics 2024-11-05 H. Kitagawa , T. Tada , K. Abe , C. Bronner , Y. Hayato , K. Hiraide , K. Hosokawa , K. Ieki , M. Ikeda , J. Kameda , Y. Kanemura , R. Kaneshima , Y. Kashiwagi , Y. Kataoka , S. Miki , S. Mine , M. Miura , S. Moriyama , Y. Nakano , M. Nakahata , S. Nakayama , Y. Noguchi , K. Okamoto , K. Sato , H. Sekiya , H. Shiba , K. Shimizu , M. Shiozawa , Y. Sonoda , Y. Suzuki , A. Takeda , Y. Takemoto , A. Takenaka , H. Tanaka , S. Watanabe , T. Yano , S. Han , T. Kajita , K. Okumura , T. Tashiro , T. Tomiya , X. Wang , S. Yoshida , G. D. Megias , P. Fernandez , L. Labarga , N. Ospina , B. Zaldivar , B. W. Pointon , E. Kearns , J. L. Raaf , L. Wan , T. Wester , J. Bian , N. J. Griskevich , S. Locke , M. B. Smy , H. W. Sobel , V. Takhistov , A. Yankelevich , J. Hill , M. C. Jang , S. H. Lee , D. H. Moon , R. G. Park , B. Bodur , K. Scholberg , C. W. Walter , A. Beauchêne , O. Drapier , A. Giampaolo , Th. A. Mueller , A. D. Santos , P. Paganini , B. Quilain , R. Rogly , T. Nakamura , J. S. Jang , L. N. Machado , J. G. Learned , K. Choi , N. Iovine , S. Cao , L. H. V. Anthony , D. Martin , N. W. Prouse , M. Scott , A. A. Sztuc , Y. Uchida , V. Berardi , N. F. Calabria , M. G. Catanesi , E. Radicioni , A. Langella , G. De Rosa , G. Collazuol , F. Iacob , M. Lamoureux , M. Mattiazzi , L. Ludovici , M. Gonin , L. Périssé , G. Pronost , C. Fujisawa , Y. Maekawa , Y. Nishimura , R. Okazaki , R. Akutsu , M. Friend , T. Hasegawa , T. Ishida , T. Kobayashi , M. Jakkapu , T. Matsubara , T. Nakadaira , K. Nakamura , Y. Oyama , K. Sakashita , T. Sekiguchi , T. Tsukamoto , N. Bhuiyan , G. T. Burton , F. Di Lodovico , J. Gao , A. Goldsack , T. Katori , J. Migenda , R. M. Ramsden , Z. Xie , S. Zsoldos , Y. Kotsar , H. Ozaki , A. T. Suzuki , Y. Takagi , Y. Takeuchi , H. Zhong , J. Feng , L. Feng , J. R. Hu , Z. Hu , M. Kawaue , T. Kikawa , M. Mori , T. Nakaya , R. A. Wendell , K. Yasutome , S. J. Jenkins , N. McCauley , P. Mehta , A. Tarant , M. J. Wilking , Y. Fukuda , Y. Itow , H. Menjo , K. Ninomiya , Y. Yoshioka , J. Lagoda , M. Mandal , P. Mijakowski , Y. S. Prabhu , J. Zalipska , M. Jia , J. Jiang , C. K. Jung , W. Shi , C. Yanagisawa , M. Harada , Y. Hino , H. Ishino , Y. Koshio , F. Nakanishi , S. Sakai , T. Tano , T. Ishizuka , G. Barr , D. Barrow , L. Cook , S. Samani , D. Wark , A. Holin , F. Nova , S. Jung , B. S. Yang , J. Y. Yang , J. Yoo , J. E. P. Fannon , L. Kneale , M. Malek , J. M. McElwee , M. D. Thiesse , L. F. Thompson , S. T. Wilson , H. Okazawa , S. M. Lakshmi , S. B. Kim , E. Kwon , J. W. Seo , I. Yu , A. K. Ichikawa , K. D. Nakamura , S. Tairafune , K. Nishijima , A. Eguchi , K. Nakagiri , Y. Nakajima , S. Shima , N. Taniuchi , E. Watanabe , M. Yokoyama , P. de Perio , S. Fujita , C. Jesús-Valls , K. Martens , K. M. Tsui , M. R. Vagins , J. Xia , S. Izumiyama , M. Kuze , R. Matsumoto , K. Terada , M. Ishitsuka , H. Ito , T. Kinoshita , Y. Ommura , N. Shigeta , M. Shinoki , T. Suganuma , K. Yamauchi , T. Yoshida , J. F. Martin , H. A. Tanaka , T. Towstego , R. Gaur , V. Gousy-Leblanc , M. Hartz , A. Konaka , X. Li , S. Chen , B. D. Xu , B. Zhang , M. Posiadala-Zezula , S. B. Boyd , R. Edwards , D. Hadley , M. Nicholson , M. O'Flaherty , B. Richards , A. Ali , B. Jamieson , S. Amanai , Ll. Marti , A. Minamino , G. Pintaudi , S. Sano , S. Suzuki , K. Wada

Measuring the rate of muon capture in hydrogen provides one of the most direct ways to study the axial current of the nucleon. The MuCap experiment uses a negative muon beam stopped in a time projection chamber operated with ultra-pure…

Nuclear Experiment · Physics 2015-03-17 Peter Winter

A computer model of a scintillator strip veto counter was built in order to verify the efficiency of the cosmic muon veto for the COMET experiment. To tune the model, experimentally measured data were utilized. Three different geometrical…

Instrumentation and Detectors · Physics 2014-02-25 Oleg Markin , Evgueny Tarkovsky

The magnetized Iron CALorimeter detector (ICAL) which is proposed to be built in the India-based Neutrino Observatory (INO) laboratory, aims to study atmospheric neutrino oscillations primarily through charged current interactions of muon…

Instrumentation and Detectors · Physics 2015-06-24 R. Kanishka , Meghna K. K. , Vipin Bhatnagar , D. Indumathi , Nita Sinha

The T2K neutrino experiment at J-PARC uses a set of near detectors to measure the properties of an unoscillated neutrino beam and neutrino interaction cross-sections. One of the sub-detectors of the near-detector complex, the side muon…

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