The Mu3e Data Acquisition
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Date
2021-08
Publication Type
Journal Article
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yes
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Abstract
The Mu3e experiment aims to find or exclude the lepton flavor violating decay mu(+) -> e(+)e(-)e(+) with a sensitivity of one in 10(16) muon decays. The first phase of the experiment is currently under construction at the Paul Scherrer Institute (PSI, Switzerland), where beams with up to 10(8) muons per second are available. The detector will consist of an ultra-thin pixel tracker made from High- Voltage Monolithic Active Pixel Sensors (HV-MAPS), complemented by scintillating tiles and fibers for precise timing measurements. The experiment produces about 100 Gbit/s of zero-suppressed data, which are transported to a filter farm using a network of field programmable gate arrays (FPGAs) and fast optical links. On the filter farm, tracks and three-particle vertices are reconstructed using highly parallel algorithms running on graphics processing units, leading to a reduction of the data to 100 Mbyte/s for mass storage and offline analysis. This article introduces the system design and hardware implementation of the Mu3e data acquisition and filter farm.
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published
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Journal / series
Volume
68 (8)
Pages / Article No.
1833 - 1840
Publisher
IEEE
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Software
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Subject
Data acquisition (DAQ); field programmable gate arrays (FPGAs); high energy physics instrumentation; printed circuits
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Notes
Funding
172519 - Search for the Lepton Flavour Violating Decay "Mu --> e e e" (Mu3e) (SNF)