Instruments, Volume 6, Issue 4
2022 December - 39 articles
Cover Story: The Mu2e experiment will search for the charged-lepton flavour violating neutrino-less muon to electron conversion μ-Al→e-Al, improving by 104 the current single-event sensitivity, using a high-resolution tracker and an electromagnetic calorimeter (EC). Composed of 1348 pure CsI crystals arranged in two annular disks, the EC will achieve σE/E < 10%, σt < 500 ps and σXY < 1 cm for 100 MeV electrons. The EC design ensures high reliability and stability in a harsh operating environment with a high vacuum, 1T B-field and radiation fields up to 100 krad and 1012 n1MeV/cm2. The EC readout, based on large area UV-extended SiPMs, features a fully custom electronics chain, from photosensors to digitiser, and underwent an intense qualification campaign. The EC is currently under construction at FNAL. View this paper
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Instruments - ISSN 2410-390X