Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Search for lepton flavour violating muon decay mediated by a new light particle in the MEG experiment. / MEG experiment.
в: European Physical Journal C, Том 80, № 9, 858, 01.09.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Search for lepton flavour violating muon decay mediated by a new light particle in the MEG experiment
AU - MEG experiment
AU - Baldini, A. M.
AU - Berg, F.
AU - Biasotti, M.
AU - Boca, G.
AU - Cattaneo, P. W.
AU - Cavoto, G.
AU - Cei, F.
AU - Chiappini, M.
AU - Chiarello, G.
AU - Chiri, C.
AU - Corvaglia, A.
AU - de Bari, A.
AU - De Gerone, M.
AU - Francesconi, M.
AU - Galli, L.
AU - Gatti, F.
AU - Grancagnolo, F.
AU - Grassi, M.
AU - Grigoriev, D. N.
AU - Hildebrandt, M.
AU - Hodge, Z.
AU - Ieki, K.
AU - Ignatov, F.
AU - Iwai, R.
AU - Iwamoto, T.
AU - Kobayashi, S.
AU - Kettle, P. R.
AU - Kyle, W.
AU - Khomutov, N.
AU - Kolesnikov, A.
AU - Kravchuk, N.
AU - Kuchinskiy, N.
AU - Libeiro, T.
AU - Lim, G. M.A.
AU - Malyshev, V.
AU - Matsuzawa, N.
AU - Meucci, M.
AU - Mihara, S.
AU - Molzon, W.
AU - Mori, Toshinori
AU - Mtchedilishvili, A.
AU - Nakao, M.
AU - Natori, H.
AU - Nicolò, D.
AU - Nishiguchi, H.
AU - Nishimura, M.
AU - Ogawa, S.
AU - Onda, R.
AU - Popov, A.
AU - Yudin, Yu V.
N1 - Funding Information: We are grateful for the support and co-operation provided by PSI as the host laboratory and to the technical and engineering staff of our institutes. This work is supported by DOE DEFG02-91ER40679 (USA); INFN (Italy); MIUR Montalcini D.M. 2014 n. 975 (Italy); JSPS KAKENHI numbers JP22000004, JP26000004, JP17J04114, and JSPS Core-to-Core Program, A. Advanced Research Networks JPJSCCA20180004 (Japan); Schweizerischer Nationalfonds (SNF) Grant 200021_137738 and Grant 200020_172706; the Russian Federation Ministry of Education and Science, and Russian Fund for Basic Research grant RFBR-14-22-03071. Publisher Copyright: © 2020, The Author(s). Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - We present the first direct search for lepton flavour violating muon decay mediated by a new light particle X, μ+→e+X,X→γγ. This search uses a dataset resulting from 7.5 × 10 14 stopped muons collected by the MEG experiment at the Paul Scherrer Institut in the period 2009–2013. No significant excess is found in the mass region 20–45 MeV/c2 for lifetimes below 40 ps, and we set the most stringent branching ratio upper limits in the mass region of 20–40 MeV/c2, down to O(10 - 11) at 90% confidence level.
AB - We present the first direct search for lepton flavour violating muon decay mediated by a new light particle X, μ+→e+X,X→γγ. This search uses a dataset resulting from 7.5 × 10 14 stopped muons collected by the MEG experiment at the Paul Scherrer Institut in the period 2009–2013. No significant excess is found in the mass region 20–45 MeV/c2 for lifetimes below 40 ps, and we set the most stringent branching ratio upper limits in the mass region of 20–40 MeV/c2, down to O(10 - 11) at 90% confidence level.
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UR - http://www.scopus.com/inward/record.url?scp=85091230431&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-020-8364-1
DO - 10.1140/epjc/s10052-020-8364-1
M3 - Article
AN - SCOPUS:85091230431
VL - 80
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 9
M1 - 858
ER -
ID: 25644864