DOE OSTI · 3023732
The Mu2e straw tracker detector status and prototype results
Abstract
The Mu2e experiment will search for charge-lepton flavor violating (CLFV) muon to electron conversion. It aims to achieve a four-orders of magnitude improvement in sensitivity over previous experiments, allowing it to probe new physics at mass scales up to 10 4 TeV . A precision momentum measurement is needed to resolve the monoenergetic electron that is the signal of CLFV conversion from muon decay-in-orbit backgrounds. Here, this is achieved in Mu2e using a low-mass cylindrical straw tracker operated in vacuum, consisting of 21,000 thin-wall mylar straws held at tension. The Mu2e tracker is now in production and will be completed during 2025. We will discuss the design and status of the experiment and the tracker detector, and show results from data taken with the first tracker module.
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Bonventre, R. [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Mu2e Collaboration. et al.] (ORCID:0000000167829727). 2025-07-04. The Mu2e straw tracker detector status and prototype results. https://doi.org/10.1016/j.nima.2025.170797
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