Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 5: Pixel-Detektoren I
T 5.9: Vortrag
Montag, 19. März 2018, 18:00–18:15, Philo-HS5
First results from the MuPix8, a large HV-MAPS prototype — •Jan Hammerich for the Mu3e collaboration — Physikalisches Institut, Universität Heidelberg
The Mu3e experiment is searching for the charged lepton flavor violating (cLFV) decay µ → eee with a planned sensitivity of 1 in 1015 decays for phase 1. To achieve such a sensitivity, a fast, high resolution tracking detector is required which has a material budget of 1 to reduce multiple Coulomb scattering.
A suitable technology for these requirements is the High Voltage Monolithic Active Pixel Sensor (HV-MAPS) concept. It combines fast charge collection via drift with a fully monolithic architecture of sensor and readout in one chip which can be thinned to 50 µ m.
The MuPix8 is the first large scale HV-MAPS prototype for Mu3e with a size of 1× 2 cm2. Efficiency and time resolution have been measured in testbeam campaigns at DESY. Additionally, measurements with testpulses and radioactive sources are presented.