Prospects of fast timing detectors for particle identification at future Higgs factories

TL;DR

This paper explores the potential of fast timing detectors with 10 ps resolution in electromagnetic calorimeters at future Higgs factories to enhance charged hadron identification and improve mass reconstruction beyond traditional methods.

Contribution

It introduces the concept of using high-precision time-of-flight measurements with fast Si sensors for particle identification at Higgs factories.

Findings

Time-of-flight can improve kaon mass determination.

Fast timing sensors enable particle ID in previously inaccessible momentum ranges.

Current challenges include sensor integration and timing precision.

Abstract

We present an overview of a study on precise mass reconstruction and identification of charged hadrons ($\pi^{\pm}$, $K^{\pm}$, $p$) using time-of-flight measurements in the electromagnetic calorimeter of a typical Higgs factory detector. Time-of-flight measurements can take advantage of fast timing Si sensors with a time resolution in the order of 10 ps. A precise time-of-flight measurement might contribute to the kaon mass determination and can improve particle identification in the momentum regions inaccessible for the $dE/dx$ method. In this contribution, we discuss the current status and the challenges of the time-of-flight approach for a precise reconstruction of charged hadron masses.