학술논문
The design of the MEG II experiment
Document Type
article
Author
A. M. Baldini; E. Baracchini; C. Bemporad; F. Berg; M. Biasotti; G. Boca; P. W. Cattaneo; G. Cavoto; F. Cei; M. Chiappini; G. Chiarello; C. Chiri; G. Cocciolo; A. Corvaglia; A. de Bari; M. De Gerone; A. D’Onofrio; M. Francesconi; Y. Fujii; L. Galli; F. Gatti; F. Grancagnolo; M. Grassi; D. N. Grigoriev; M. Hildebrandt; Z. Hodge; K. Ieki; F. Ignatov; R. Iwai; T. Iwamoto; D. Kaneko; K. Kasami; P.-R. Kettle; B. I. Khazin; N. Khomutov; A. Korenchenko; N. Kravchuk; T. Libeiro; M. Maki; N. Matsuzawa; S. Mihara; M. Milgie; W. Molzon; Toshinori Mori; F. Morsani; A. Mtchedilishvili; M. Nakao; S. Nakaura; D. Nicolò; H. Nishiguchi; M. Nishimura; S. Ogawa; W. Ootani; M. Panareo; A. Papa; A. Pepino; G. Piredda; A. Popov; F. Raffaelli; F. Renga; E. Ripiccini; S. Ritt; M. Rossella; G. Rutar; R. Sawada; G. Signorelli; M. Simonetta; G. F. Tassielli; Y. Uchiyama; M. Usami; M. Venturini; C. Voena; K. Yoshida; Yu. V. Yudin; Y. Zhang
Source
European Physical Journal C: Particles and Fields, Vol 78, Iss 5, Pp 1-60 (2018)
Subject
Language
English
ISSN
1434-6044
1434-6052
1434-6052
Abstract
Abstract The MEG experiment, designed to search for the $${\mu ^+ \rightarrow \hbox {e}^+ \gamma }$$ μ+→e+γ decay, completed data-taking in 2013 reaching a sensitivity level of $${5.3\times 10^{-13}}$$ 5.3×10-13 for the branching ratio. In order to increase the sensitivity reach of the experiment by an order of magnitude to the level of $$6\times 10^{-14}$$ 6×10-14 , a total upgrade, involving substantial changes to the experiment, has been undertaken, known as MEG II. We present both the motivation for the upgrade and a detailed overview of the design of the experiment and of the expected detector performance.