Instruments (Oct 2022)
The Mu2e Crystal Calorimeter: An Overview
- Nikolay Atanov,
- Vladimir Baranov,
- Leo Borrel,
- Caterina Bloise,
- Julian Budagov,
- Sergio Ceravolo,
- Franco Cervelli,
- Francesco Colao,
- Marco Cordelli,
- Giovanni Corradi,
- Yuri Davydov,
- Stefano Di Falco,
- Eleonora Diociaiuti,
- Simone Donati,
- Bertrand Echenard,
- Carlo Ferrari,
- Antonio Gioiosa,
- Simona Giovannella,
- Valerio Giusti,
- Vladimir Glagolev,
- Francesco Grancagnolo,
- Dariush Hampai,
- Fabio Happacher,
- David Hitlin,
- Matteo Martini,
- Sophie Middleton,
- Stefano Miscetti,
- Luca Morescalchi,
- Daniele Paesani,
- Daniele Pasciuto,
- Elena Pedreschi,
- Frank Porter,
- Fabrizio Raffaelli,
- Alessandro Saputi,
- Ivano Sarra,
- Franco Spinella,
- Alessandra Taffara,
- Anna Maria Zanetti,
- Ren Yuan Zhu
Affiliations
- Nikolay Atanov
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
- Vladimir Baranov
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
- Leo Borrel
- California Institute of Technology, Pasadena, CA 91125, USA
- Caterina Bloise
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Julian Budagov
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
- Sergio Ceravolo
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Franco Cervelli
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Francesco Colao
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Marco Cordelli
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Giovanni Corradi
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Yuri Davydov
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
- Stefano Di Falco
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Eleonora Diociaiuti
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Simone Donati
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Bertrand Echenard
- California Institute of Technology, Pasadena, CA 91125, USA
- Carlo Ferrari
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Antonio Gioiosa
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Simona Giovannella
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Valerio Giusti
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Vladimir Glagolev
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
- Francesco Grancagnolo
- INFN—Sezione di Lecce, 73100 Lecce, Italy
- Dariush Hampai
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Fabio Happacher
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- David Hitlin
- California Institute of Technology, Pasadena, CA 91125, USA
- Matteo Martini
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Sophie Middleton
- California Institute of Technology, Pasadena, CA 91125, USA
- Stefano Miscetti
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Luca Morescalchi
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Daniele Paesani
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Daniele Pasciuto
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Elena Pedreschi
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Frank Porter
- California Institute of Technology, Pasadena, CA 91125, USA
- Fabrizio Raffaelli
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Alessandro Saputi
- INFN—Sezione di Ferrara, 44100 Ferrara, Italy
- Ivano Sarra
- Laboratori Nazionali di Frascati dell’INFN, 00044 Frascati, Italy
- Franco Spinella
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Alessandra Taffara
- INFN—Sezione di Pisa, 56100 Pisa, Italy
- Anna Maria Zanetti
- INFN—Sezione di Trieste, 34149 Trieste, Italy
- Ren Yuan Zhu
- California Institute of Technology, Pasadena, CA 91125, USA
- DOI
- https://doi.org/10.3390/instruments6040060
- Journal volume & issue
-
Vol. 6,
no. 4
p. 60
Abstract
The Mu2e experiment at Fermilab will search for the standard model-forbidden, charged lepton flavour-violating conversion of a negative muon into an electron in the field of an aluminium nucleus. The distinctive signal signature is represented by a mono-energetic electron with an energy near the muon’s rest mass. The experiment aims to improve the current single-event sensitivity by four orders of magnitude by means of a high-intensity pulsed muon beam and a high-precision tracking system. The electromagnetic calorimeter complements the tracker by providing high rejection power in muon to electron identification and a seed for track reconstruction while working in vacuum in presence of a 1 T axial magnetic field and in a harsh radiation environment. For 100 MeV electrons, the calorimeter should achieve: (a) a time resolution better than 0.5 ns, (b) an energy resolution <10%, and (c) a position resolution of 1 cm. The calorimeter design consists of two disks, each loaded with 674 undoped CsI crystals read out by two large-area arrays of UV-extended SiPMs and custom analogue and digital electronics. We describe here the status of construction for all calorimeter components and the performance measurements conducted on the large-sized prototype with electron beams and minimum ionizing particles at a cosmic ray test stand. A discussion of the calorimeter’s engineering aspects and the on-going assembly is also reported.
Keywords