Karlsruhe 2024 – scientific programme
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T: Fachverband Teilchenphysik
T 5: Methods in particle physics 1 (e/gamma, SciFi)
T 5.4: Talk
Monday, March 4, 2024, 16:45–17:00, Geb. 20.30: 2.066
Modern electron reconstruction for future Higgs factories — •Leonhard Reichenbach1,2, André Sailer1, Christian Grefe2, Philip Bechtle2, and Klaus Desch2 — 1CERN, Geneva, Switzerland — 2Universität Bonn, Germany
The precise reconstruction of electrons is an important ingredient for the proposed physics program at future Higgs factories (HF). This becomes especially important in the Standard Model precision measurements with the highest indirect sensitivity for new physics: mW and triple gauge couplings. These were also identified as two high-priority focus topics of the ongoing HF study of the European Committee for Future Accelerators (ECFA). The track reconstruction is particularly challenging for electrons due to their increased material interaction probability. The ECFA HF study is performed with multiple detectors and accelerators in mind, sharing the common Key4hep "turn-key" software framework. We are extending this framework with a dedicated electron reconstruction algorithm utilizing state-of-the-art methods from LHC experiments. For this, we will investigate the usage of a Gaussian sum filter (GSF) based track fit using the ACTS tracking framework and evaluate its performance in a detector-agnostic Key4hep eν W benchmark analysis
Keywords: track reconstruction; future Higgs factories; ACTS; Key4hep