The Future Circular Collider (FCC) stands at the forefront of the European Strategy for Particle Physics as the future Higgs factory. The $H \to \tau\tau$ decay, featuring a large branching ratio, clean identification at FCC-ee environment, and the possibility to reconstruct polarization information, is an excellent channel to measure Higgs properties. The CP nature of the Htautau coupling is...
We explore the possibility that CP symmetry is violated in Higgs boson's interactions with Z, assuming that Higgs is produced in ZZ-fusion, at 1 TeV ILC. CPV is generated via mixing of scalar and pseudoscalar states in 125 GeV mass eigenstate. 8 ab−1 of data collected with the ILD detector is simulated in the full simulation (background) and fast simulation of the detector response (signal)....
Calorimetry based on liquefied noble gases is a well proven technology that has been successfully applied in numerous high-energy physics experiments, such as DØ, ATLAS, and NA62. In addition to extreme radiation hardness, noble liquid calorimeters provide excellent energy resolution, linearity, stability, uniformity and timing properties at a reasonable cost. These attributes make it a strong...
K4DetPerformance is a framework designed to study tracking performance within full simulation environments. Initially developed for the CLD detector for FCC-ee, K4DetPerformance has now been integrated into the Key4hep software stack. Current efforts are focused on extending its applicability to other detectors.
The framework requires a complete simulation and reconstruction setup. It...
The SDHCAL (Semi Digital Hadronic Calorimeter) is a hadronic calorimeter for Particle Flow. It is proposed for future e+e- Higgs factories projects as a baseline for different detectors. A technological prototype has been built within the CALICE collaboration. This prototype is a sampling hadronic calorimeter using large GRPC (Glass Resistive Plate Chamber) as active medium with embedded...
After LHC era, the Future Circular Collider is a very ambitious project for the next generation particle collider. The first stage of the project is circular electron-positron collider (FCC-ee). One of the proposed detectors for FCC-ee is general-purpose detector ALLEGRO. The calorimetry system of new detector consists of a high granular noble liquid electromagnetic calorimeter and a hadronic...
This analysis explores the sensitivity of the strong coupling constant 𝛂s at the FCC-ee through studies based on R3/2 and the Lund Jet Plane (LJP). Preliminary results demonstrate the dependence of R3/2 on 𝛂s, providing key insights into QCD measurements. For LJP studies, initial representations of primary and secondary LJPs are presented, utilizing clustering and declustering algorithms...
