A tracker for the Mu3e experiment based on high-voltage monolithic active pixel sensors
The Mu3e experiment searches for the lepton flavour violating decay μ+→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 minimise multiple scattering, the amo...
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
18 May 2013
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| In: |
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
Year: 2013, Volume: 732, Pages: 61-65 |
| ISSN: | 1872-9576 |
| DOI: | 10.1016/j.nima.2013.05.035 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.nima.2013.05.035 Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S016890021300613X |
| Author Notes: | Niklaus Berger, Heiko Augustin, Sebastian Bachmann, Moritz Kiehn, Ivan Perić, Ann-Kathrin Perrevoort, Raphael Philipp, André Schöning, Kevin Stumpf, Dirk Wiedner, Bernd Windelband, Marco Zimmermann |
| Summary: | The Mu3e experiment searches for the lepton flavour violating decay μ+→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 minimise 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 50μm 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 25μm thick Kapton foil and cooled with gaseous helium. |
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| Item Description: | Gesehen am 24.11.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1872-9576 |
| DOI: | 10.1016/j.nima.2013.05.035 |