The MuPix System-on-Chip for the Mu3e Experiment

Abstract

Mu3e is a novel experiment searching for charged lepton flavor violation in the rare decay ${\mu }^{+}\to e^{+}{e}^{-}{e}^{+}$. Decay vertex position, decay time and particle momenta have to be precisely measured in order to reject both accidental and physics background. A silicon pixel tracker based on $50\mu$m thin high voltage monolithic active pixel sensors (HV-MAPS) in a 1 T solenoidal magnetic field provides precise vertex and momentum information. The MuPix chip combines pixel sensor cells with integrated analog electronics and a periphery with a complete digital readout. The MuPix7 is the first HV-MAPS prototype implementing all functionalities of the final sensor including a readout state machine and high speed serialization with 1.25 Gbit/s data output, allowing for a streaming readout in parallel to the data taking. The observed efficiency of the MuPix7 chip including the full readout system is $\ge 99\%$ in a high rate test beam.

Replaced with final version accepted by the publisher

References in corpus (2)

• Research Proposal for an Experiment to Search for the Decay μ -> eee
• Measuring the weak mixing angle with the P2 experiment at MESA

Cited by in corpus (14)

• The P2 Experiment - A future high-precision measurement of the electroweak mixing angle at low momentum transfer
• Depleted fully monolithic CMOS pixel detectors using a column based readout architecture for the ATLAS Inner Tracker upgrade
• The MuPix Telescope: A Thin, high Rate Tracking Telescope
• Performance of the large scale HV-CMOS pixel sensor MuPix8
• MuPix7 - A fast monolithic HV-CMOS pixel chip for Mu3e
• The Mu3e Data Acquisition
• Irradiation study of a fully monolithic HV-CMOS pixel sensor design in AMS 180 nm
• Efficiency and timing performance of the MuPix7 high-voltage monolithic active pixel sensor
• Performance of CMOS pixel sensor prototypes in ams H35 and aH18 technology for the ATLAS ITk upgrade
• Feasibility studies for a wireless 60 GHz tracking detector readout
• Data Flow in the Mu3e DAQ
• Electrical characterization of AMS aH18 HV-CMOS after neutrons and protons irradiation
• Online Event Selection for Mu3e using GPUs
• Advanced muon-spin spectroscopy with high lateral resolution using Si-pixel detectors