A Caltech Library Service

Design and status of the Mu2e crystal calorimeter

Atanov, N. and Echenard, B. and Hitlin, D. and Miyashita, T. S. and Porter, F. and Zhu, R. Y. (2020) Design and status of the Mu2e crystal calorimeter. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 958 . Art. No. 162140. ISSN 0168-9002. doi:10.1016/j.nima.2019.04.094.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


The Mu2e experiment at Fermilab searches for the coherent neutrino-less muon to electron conversion in the Coulomb field of an aluminium nucleus. This charged-lepton flavour violating process is characterised by a distinctive signature of a mono-energetic electron (~105 MeV/c) and its observation will be a clear signature of new physics beyond the Standard Model. The Mu2e goal is to improve by four orders of magnitude the search sensitivity with respect to the previous experiments. The Mu2e detector is composed of a tracker, an electromagnetic calorimeter and an external veto for cosmic rays. The calorimeter plays an important role in providing excellent particle identification capabilities, a fast online trigger filter while aiding the track reconstruction capabilities. It consists of 1348 pure CsI crystals divided in two annular disks, each one readout by two large area Silicon Photomultipliers. A large scale prototype has been tested with an electron beam, demonstrating to largely satisfy the Mu2e requirements. At the moment of writing, the crystals and SiPMs production phase is halfway trough the completion. An overview of the characterisation tests is reported, together with a description of the final mechanical and electronical design.

Item Type:Article
Related URLs:
URLURL TypeDescription
Hitlin, D.0000-0003-4028-6982
Porter, F.0000-0003-1948-8889
Zhu, R. Y.0000-0003-3091-7461
Additional Information:© 2019 Published by Elsevier B.V. Received 17 April 2019, Accepted 25 April 2019, Available online 16 May 2019.
Funding AgencyGrant Number
Science and Technology Facilities Council (STFC)UNSPECIFIED
Ministry of Education and Science of the Russian FederationUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
Istituto Nazionale di Fisica Nucleare (INFN)UNSPECIFIED
China 1000-Young Talents PlanUNSPECIFIED
Helmholtz AssociationUNSPECIFIED
Marie Curie Fellowship690835
Subject Keywords:Mu2e; Calorimetry; Pure CsI crystals; SiPMs
Record Number:CaltechAUTHORS:20190520-142310699
Persistent URL:
Official Citation:N. Atanov, V. Baranov, C. Bloise, J. Budagov, F. Cervelli, S. Ceravolo, F. Colao, M. Cordelli, G. Corradi, Yu.I. Davydov, S. Di Falco, E. Diociaiuti, S. Donati, R. Donghia, B. Echenard, C. Ferrari, S. Giovannella, V. Glagolev, F. Grancagnolo, D. Hampai, F. Happacher, D. Hitlin, M. Martini, S. Miscetti, T. Miyashita, L. Morescalchi, P. Murat, D. Pasciuto, E. Pedreschi, G. Pezzullo, F. Porter, F. Raffaelli, A. Saputi, I. Sarra, F. Spinella, G. Tassielli, V. Tereshchenko, Z. Usubov, I.I. Vasilyev, A. Zanetti, R.Y. Zhu, Design and status of the Mu2e crystal calorimeter, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 958, 2020, 162140, ISSN 0168-9002, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95613
Deposited By: Tony Diaz
Deposited On:20 May 2019 22:52
Last Modified:16 Nov 2021 17:14

Repository Staff Only: item control page