The Search for μ+ → e+γ with 10–14 Sensitivity: The Upgrade of the MEG Experiment

Autor: Alessandro M. Baldini, Vladimir Baranov, Michele Biasotti, Gianluigi Boca, Paolo W. Cattaneo, Gianluca Cavoto, Fabrizio Cei, Marco Chiappini, Gianluigi Chiarello, Alessandro Corvaglia, Federica Cuna, Giovanni dal Maso, Antonio de Bari, Matteo De Gerone, Marco Francesconi, Luca Galli, Giovanni Gallucci, Flavio Gatti, Francesco Grancagnolo, Marco Grassi, Dmitry N. Grigoriev, Malte Hildebrandt, Kei Ieki, Fedor Ignatov, Toshiyuki Iwamoto, Peter-Raymond Kettle, Nikolay Khomutov, Satoru Kobayashi, Alexander Kolesnikov, Nikolay Kravchuk, Victor Krylov, Nikolay Kuchinskiy, William Kyle, Terence Libeiro, Vladimir Malyshev, Manuel Meucci, Satoshi Mihara, William Molzon, Toshinori Mori, Alexander Mtchedlishvili, Mitsutaka Nakao, Donato Nicolò, Hajime Nishiguchi, Shinji Ogawa, Rina Onda, Wataru Ootani, Atsushi Oya, Dylan Palo, Marco Panareo, Angela Papa, Valerio Pettinacci, Alexander Popov, Francesco Renga, Stefan Ritt, Massimo Rossella, Aleksander Rozhdestvensky, Patrick Schwendimann, Kohei Shimada, Giovanni Signorelli, Alexey Stoykov, Giovanni F. Tassielli, Kazuki Toyoda, Yusuke Uchiyama, Masashi Usami, Cecilia Voena, Kosuke Yanai, Kensuke Yamamoto, Taku Yonemoto, Yury V. Yudin

Publikováno v: Symmetry, Vol 13, Iss 9, p 1591 (2021)

The MEG experiment took data at the Paul Scherrer Institute in the years 2009–2013 to test the violation of the lepton flavor conservation law, which originates from an accidental symmetry that the Standard Model of elementary particle physics has,

Externí odkaz: https://doaj.org/article/321e3a517937421e98df4713b50aa5e6

Search for lepton flavour violating muon decay mediated by a new light particle in the MEG experiment

Autor: A. Stoykov, Valerio Pettinacci, Andrey Popov, S. Ogawa, Toshinori Mori, Stefan Ritt, K. Ieki, G. F. Tassielli, N. P. Kravchuk, Satoru Kobayashi, M. Panareo, M. De Gerone, P. Schwendimann, Malte Hildebrandt, Flavio Gatti, A. Papa, G. Pizzigoni, M. Francesconi, William Kyle, T. Libeiro, M. Usami, W. R. Molzon, Michele Biasotti, Yusuke Uchiyama, M. Chiappini, Satoshi Mihara, D. Nicolò, R. Onda, Dylan Palo, P.-R. Kettle, G. M. A. Lim, N. V. Khomutov, L. Galli, M. Nakao, Vladimir Malyshev, M. Nishimura, F. Ignatov, A. Kolesnikov, C. Chiri, Gianluigi Boca, F. Renga, Atsushi Oya, Ryu Sawada, G. Signorelli, A. de Bari, F. Grancagnolo, G. Cavoto, P. W. Cattaneo, H. Natori, Z. Hodge, R. Iwai, Yu.V. Yudin, Fabrizio Cei, F. Berg, Kazuki Toyoda, T. Iwamoto, M. Rossella, K. Yanai, Marco Grassi, Wataru Ootani, C. Voena, A. Corvaglia, A. M. Baldini, Nikolay Kuchinskiy, Aleksander Rozhdestvensky, Hajime Nishiguchi, Manuel Meucci, G. Chiarello, D. N. Grigoriev, A. Mtchedilishvili, Nobuo Matsuzawa

Publikováno v: European Physical Journal C: Particles and Fields, Vol 80, Iss 9, Pp 1-21 (2020)
European Physical Journal

We present the first direct search for lepton flavour violating muon decay mediated by a new light particle X, $$\upmu ^+ \rightarrow \mathrm {e}^+\mathrm {X}, \mathrm {X} \rightarrow \upgamma \upgamma \ $$ μ + → e + X , X → γ γ . This search

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aff3ede29fbfb33fb8b740bdec9b3327
http://link.springer.com/article/10.1140/epjc/s10052-020-8364-1

The trigger system for the MEG II experiment

Autor: Marco Francesconi, Alessandro M. Baldini, Sei Ban, Hicham Benmansour, Paolo W. Cattaneo, Fabrizio Cei, Marco Chiappini, Gianluigi Chiarello, Luca Galli, Flavio Gatti, Matteo de Gerone, Marco Grassi, Ueli Hartmann, Toshiyuki Iwamoto, Satoru Kobayashi, Ayaka Matsushita, Fabio Morsani, Donato Nicoló, Rina Onda, Wataru Ootani, Atsushi Oya, Angela Papa, Stefan Ritt, Massimo Rossella, Elmar Schmid, Giovanni Signorelli, Yusuke Uchiyama, Antoine Venturini, Bastiano Vitali, Taku Yonemoto, Keisuke Yoshida

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1046:167736

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef0b1b3dba5ab0e0e4cb8d8b9f221413
https://doi.org/10.1016/j.nima.2022.167736

The Mu3e Data Acquisition

Autor: U. Hartmann, Tiancheng Zhong, A.-K. Perrevoort, Alexandr Kozlinskiy, Samer Kilani, Frank Meier Aeschbacher, Ben Gayther, Huangshan Chen, Luigi Vigani, Hans-Christian Schultz-Coulon, Marius Köppel, Dirk Gottschalk, Sebastain Dittmeier, Wei Shen, Lukas Gerritzen, Konrad Briggl, Niklaus Berger, André Schöning, Gavin Grant Hesketh, Dirk Wiedner, Yonathan Munwes, Dorothea vom Bruch, Simon Corrodi, M. Müller, H. Augustin, Stefan Ritt, A. Bravar, Frederik Wauters

Publikováno v: IEEE Trans.Nucl.Sci.
IEEE Trans.Nucl.Sci., 2021, 68 (8), pp.1833-1840. ⟨10.1109/TNS.2021.3084060⟩
IEEE Trans.Nucl.Sci., 2021, 68, pp.1833-1840. ⟨10.1109/TNS.2021.3084060⟩
IEEE Transactions on Nuclear Science, 68 (8)

The Mu3e experiment aims to find or exclude the lepton flavour violating decay $\mu^+\to e^+e^-e^+$ with a sensitivity of one in 10$^{16}$ muon decays. The first phase of the experiment is currently under construction at the Paul Scherrer Institute (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca61438c21bf273375121e3836ec17bf
https://hal.science/hal-03010991

Full system of positron timing counter in MEG II having time resolution below 40 ps with fast plastic scintillator readout by SiPMs

Autor: D. Nicol, F. Berg, Stefan Ritt, M. Rossella, M. Francesconi, M. Nakao, M. Nishimura, Michele Biasotti, M. De Gerone, M. Usami, P. W. Cattaneo, Flavio Gatti, Luca Galli, P.R. Kettle, A. de Bari, G. Boca, Yusuke Uchiyama, U. Hartmann, Angela Papa, E. Schmid, Wataru Ootani, Kosuke Yanai, Z. Hodge

A positron timing counter (TC) with 30–40 ps time resolution for 50 MeV/c positrons required by the MEG II experiment has been developed. We employed a highly segmented design with 512 scintillator plates (120 × 40 × 5 mm3 and 120 × 50 × 5 mm3)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afa73d5b181a6388de9afc40b73dbec2
https://hdl.handle.net/11567/992740