Dortmund 2021 – scientific programme
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T: Fachverband Teilchenphysik
T 19: Detector systems I
T 19.6: Talk
Monday, March 15, 2021, 17:20–17:35, Ts
Tracking of charged particles using an FE-I4B pixel telescope and moving emulsion films — •Nikolaus Owtscharenko1, Markus Cristinziani1, Vadim Kostyukhin2, Christopher Betancourt3, Fabian Hügging4, Jens Janssen4, David-Leon Pohl4, Antonia Di Crescenzo5, and Antonio Iuliano5 — 1Center for Particle Physics Siegen, Experimentelle Teilchenphysik, Universität Siegen — 2University of Sheffield — 3Universität Zürich — 4Physikalisches Institut, Universität Bonn — 5Sezione INFN di Napoli
The SHiP collaboration proposes a general purpose fixed-target experiment to search for hidden particles at the new beam-dump facility at CERN SPS. To estimate the charm production cross section in the experiment, which includes hadronic cascade production, several dedicated measurements have been proposed. A first run was performed in summer 2018. Protons from SPS interacted with a thick multilayer target, interleaved with tracking emulsion films. While the emulsion detector offered high spatial resolution, it did not provide timing information. For full event reconstruction a 6-plane telescope made of ATLAS IBL double-chip modules was assembled and placed downstream of the target to provide a high timing resolution. An occupancy limit on the emulsion films made a movement of the target during and in between spills necessary. The matching of track candidates reconstructed in the moving emulsion detector with those reconstructed in the fixed pixel detector is presented.