Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
T: Fachverband Teilchenphysik
T 46: Calorimeter / Detector Systems II
T 46.5: Vortrag
Dienstag, 21. März 2023, 18:00–18:15, WIL/C133
Track reconstruction of charged particles using a 4D quantum algorithm — Arianna Crippa1,2, Lena Funcke3,4, Tobias Hartung5, Beate Heinemann1,6, Karl Jansen1, Annabel Kropf1,6, Stefan Kühn1, Federico Meloni1, •David Spataro1,6, Cenk Tüysüz1,2, and Yee Chinn Yap1 — 1Deutsches Elektronen-Synchrotron DESY — 2Humboldt-Universität zu Berlin — 3Universität Bonn — 4Massachusetts Institute of Technology — 5Northeastern University, London — 6Albert-Ludwigs-Universität Freiburg
Reconstructing tracks in future colliders can be challenging for several reasons. For example, there may be a large number of particle tracks or a high background rate. Therefore, new reconstruction techniques need to be developed and existing ones refined. Quantum algorithms are believed to offer an advantage in computation time in combinatorial tasks such as track reconstruction. By formulating the tracking task as Quadratic Unconstrained Binary Optimization (QUBO), the task can be solved with quantum computers. For the first time, a time component is integrated into QUBO to enable 4D tracking, reducing background rates effectively. Results of an initial implementation are presented for a setup similar to the positron tracking system of LUXE, an experiment planned at DESY and Eu.XFEL. Peak occupancies of up to 100 hits/mm2 are expected in the initial phase of LUXE. To demonstrate the transferability of this approach, results are also presented for a barrel-shaped muon collider detector geometry, where lower peak occupancy but large background is expected.