A Tracker for the Mu3e Experiment based on High-Voltage Monolithic Active Pixel Sensors
Instrumentation and Detectors
2013-11-26 v1 High Energy Physics - Experiment
Abstract
The Mu3e experiment searches for the lepton flavour violating decay mu+ -> e+e-e+, aiming for a branching fraction sensitivity of 10^-16. This requires an excellent momentum resolution for low energy electrons, high rate capability and a large acceptance. In order to minimize multiple scattering, the amount of material has to be as small as possible. These challenges can be met with a tracker built from high-voltage monolithic active pixel sensors (HV-MAPS), which can be thinned to 50 um and which incorporate the complete read-out electronics on the sensor chip. To further minimise material, the sensors are supported by a mechanical structure built from 25 um thick Kapton foil and cooled with gaseous helium.
Cite
@article{arxiv.1309.7896,
title = {A Tracker for the Mu3e Experiment based on High-Voltage Monolithic Active Pixel Sensors},
author = {Niklaus Berger and Heiko Augustin and Sebastian Bachmann and Moritz Kiehn and Ivan Perić and Ann-Kathrin Perrevoort and Raphael Philipp and André Schöning and Kevin Stumpf and Dirk Wiedner and Bernd Windelband and Marco Zimmermann},
journal= {arXiv preprint arXiv:1309.7896},
year = {2013}
}
Comments
4 pages, 10 figures