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16-19 January 2018
Zurich, Switzerland
Europe/Berlin timezone

Hit, track and vertex reconstruction using multiplexed micromegas detectors in NA64

19 Jan 2018, 09:40
20m
ETH HG E 1.2 (Zurich, Switzerland)

ETH HG E 1.2

Zurich, Switzerland

Rämistrasse 101, 8092 Zürich, Schweiz

Speaker

Dr David Cooke (ETH Zurich)

Description

The NA64 experiment is a fixed target experiment at the SPS at CERN, searching for new physics using an active beam dump to detect missing-energy events. It employs a tracker based on multiplexed micromegas detectors, which presents a unique challenge with respect to reconstructing particle trajectories. In particular, the signature of dark photon (or alternatively $^8$Be anomaly X boson) decay to e$^+$e$^-$ pair requires the reconstruction of the decay vertex \textit{after} the beam dump calorimeter, where owing to a lack of hermiticity, additional particles may also be present. This talk reports on the progress towards reconstructing such events, using simulation and a test data set from NA64 2017 run comprising dimuon events (which have a similar experimental signature).

Primary author

Dr David Cooke (ETH Zurich)

Co-authors

Prof. Andre Rubbia (ETH Zurich) Dr Balint Radics (ETH Zurich) Dr Dipanwita Banerjee (CERN) Mr Emilio Depero (ETH Zurich) Dr Paolo Crivelli (ETH Zurich)

Presentation Materials