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Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 65: Experimental methods III

T 65.9: Talk

Wednesday, March 17, 2021, 18:00–18:15, To

Prospects of fast timing detectors for particle identification at future Higgs factories — •Bohdan Dudar1,2, Rémi Ete1, and Jenny List11DESY, Hamburg, Germany — 2Hamburg University, Germany

Future e+e colliders are excellent tools to probe fundamental physics beyond Standard Model via Higgs and electroweak precision measurements.

Modern silicon detectors are able to measure time-of-arrival with high precision of O(10 ps). This can be used to measure the time-of-flight (TOF) of the particles and improve their identification.

We develop reconstruction and calibration algorithms based on TOF information to separate π±, K±, p, p particles at future Higgs factory detectors. Furthermore, we study how to implement fast timing silicon layers in the tracking and/or calorimeter systems, in order to derive requirements on the time resolution. As an example case, the ILD detector concept is studied.

The K± mass measurement is a simple benchmark to test the performance of TOF algorithm. A precision at the level of 10 keV can be expected, which would significantly improve the knowledge of the K± mass.

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