Implementation, performance and physics impact of particle identification at Higgs factories

This work introduces the software tool Comprehensive Particle Identification (CPID). It is a modular approach to combined PID for future Higgs factories and implemented in the Key4hep framework. Its structure is explained, the current module library laid out and initial performance measures for the ILD detector as an example presented. A basic run of CPID works already as well as the default full-simulation ILD PID reconstruction, but allows for an easy and convenient addition of more PID observables, improving PID performance in future analyses and high-level reconstruction, such as strange tagging.Comment: Poster presented at: The European Physical Society Conference on High Energy Physics (EPS-HEP2023), 21-25 August 2023, Hamburg, German

Particle identification with time-of-flight

A particle identification is an essential tool for precision measurements at the ILC. Recent development of the fast-timing Si sensors with a time resolution below 100 ps gives a possibility for the $\pi^{\pm}$, $K^{\pm}$, $p$ separation using time-of-flight measurements. In our study we use ILD as an example to test different potential placements of the fast-timing Si sensors for instance in the SET and inner ECal layers simulating possible time resolution scenarios. In this talk we present latest results on the performance of the time-of-flight particle identification

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

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

New ideas on detector technology for the ILC experiments

Detector concepts are being developed for the foreseen electron-positron International Linear Collider (ILC) in Japan. Set to run as a Higgs Factory, ILC will address a rich scientific program from electroweak physics to BSM. The detectors are being optimized for precision physics in a range of energies between 90 GeV and 1 TeV. This poster will summarized the required performance of detectors, the proposed implementation and the readiness of different technologies needed for the deployment at ILC

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

Future ^+^- 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 $\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$ particles in 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 $K^{\pm}$ 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 $K^{\pm}$ mass

Development of the time-of-flight particle identification for future Higgs factories

At the latest European strategy update in 2020 it has been highlighted that the next highest-priority collider should be an $e^+e^-$ Higgs factory with a strong focus on precision physics. Particle identification will be an essential tool for such precision measurements to utilise clean event environment and push event reconstruction to its full potential. A recent development of the fast-timing Si sensors such as LGADs with a time resolution below 50 ps will allow to enhance precision measurements at the future Higgs factories with an additional separation of $\pi^{\pm}$, $K^{\pm}$, $p$ using time-of-flight technique. In this study we present our latest developments of the time-of-flight particle identification algorithm with a brief overview of its potential physics applications, discuss its realistic design implementations inside the future Higgs factory detector using International Large Detector (ILD) as an example and highlight a key role and importance of the fast-timing detectors for $\pi^{\pm}$, $K^{\pm}$, $p$ identification

Particle identification with fast timing detectors at future Higgs factories

Future +− Higgs factory collider projects are designed for precision measurements of the Higgs boson and of electroweak observables, thereby utilizing every event to their full potential. The identification of the pions, kaons and protons plays a key role for precision measurements and event reconstruction, especially for the flavour tagging. To improve the identification of charged hadrons at low momentum we can use the time-of-flight method. It relies on current silicon sensor technologies with extremely good time resolution of 10 - 30 ps. This allows to measure the time-of-flight of particles and reconstruct their mass providing additional tool for identification of $\pi^{\pm}$, $K^{\pm}$ and $p$. We study possible realistic implementation scenarios and potential physics applications of the fast timing silicon sensors into the future Higgs factory detectors using as an example the International Large Detector (ILD) at the International Linear Collider (ILC)

Prospects of time-of-flight particle identification at the future Higgs factories

One of the important aspects of the future Higgs factory is particle identification, which is important for precision measurements and plays a crucial role for flavour physics. Recent technology developments of Si sensors, e.g. LGADs, enable time resolutions below 50 ps. This allows to use measurement of the time-of-flight as a tool for particle identification of $\pi^{\pm}$, $K^{\pm}$ and $p$ up to roughly 5 GeV momentum. Time-of-flight particle identification serves as a great complementary tool for $dE/dx$ in gaseous detectors and the only available particle identification tool in fully Si detector designs. In this talk we will discuss the latest developments of the time-of-flight particle identification tool, its physics applications at the future Higgs factory and the potential impact on the detector design using International Large Detector (ILD) at the International Linear Collider (ILC) as an example case