The Mu2e crystal and SiPM calorimeter: construction status

Nikolay Atanov; Vladimir Baranov; Leo Borrel; Caterina Bloise; Julian Budagov; Sergio Ceravol; Franco Cervelli; Francesco Colao; Marco Cordelli; Giovanni Corradi; Yuri Davydov; Stefano Di Falco; Eleonora Diociaiuti; Simone Donati; Bertrand Echenard; Carlo Ferrari; Ruben Gargiulo; 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

doi:10.1109/tns.2023.3264757

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arXiv · 2401.15609

The Mu2e crystal and SiPM calorimeter: construction status

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Abstract

The Mu2e experiment at Fermilab searches for the neutrino-less conversion of a negative muon into an electron, with a distinctive signature of a mono-energetic electron with energy of 104.967 MeV. The calorimeter is made of two disks of pure CsI crystals, each read out by two custom large area UV-extended SiPMs. It plays a fundamental role in providing excellent particle identification capabilities and an online trigger filter while improving the track reconstruction, requiring better than 10% energy and 500 ps timing resolutions for 100 MeV electrons. In this paper, we present the status of construction and the Quality Control (QC) performed on the produced crystals and photosensors, the development of the rad-hard electronics, and the most important results of the irradiation tests. Construction of the mechanics is also reported. Status and plans for the calorimeter assembly and its first commissioning are described.

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Nikolay Atanov, Vladimir Baranov, Leo Borrel, Caterina Bloise, Julian Budagov, Sergio Ceravol, Franco Cervelli, Francesco Colao, Marco Cordelli, Giovanni Corradi, Yuri Davydov, Stefano Di Falco, Eleonora Diociaiuti, Simone Donati, Bertrand Echenard, Carlo Ferrari, Ruben Gargiulo, 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. 2024-01-28. The Mu2e crystal and SiPM calorimeter: construction status. https://doi.org/10.1109/tns.2023.3264757

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