Experimental methods and prospects on the measurement of electroweak b and c-quark observables at the ILC operating at 250 GeV

2023/06/20 by A. Irles Quiles, Irles, A., R. Pöschl +3
Physics and Astronomy · #Particle physics theoretical and experimental studies #Particle Detector Development and Performance #Dark Matter and Cosmic Phenomena

paper · pdf · doi:10.48550/arxiv.2306.11413

Abstract

This paper describes a comprehensive experimental study on viability and prospects for the measurement of electroweak observables in e⁺e^-→ bb and e⁺e^-→ cc processes at the International Linear Collider (ILC) operating at 250 GeV of centre of mass energy. The ILC will produce electron and positron beams with different degrees of longitudinal polarisation (up to 80% for electrons and 30% for positrons). The studies are based on a detailed simulation of the International Large Detector (ILD) concept. This will allow to inspect in detail the four independent chirality combinations of the electroweak couplings to electrons and other fermions and also perform background free analysis. The ILD design is based on the particle flow approach and the excellent vertexing and tracking capabilities, including charged hadron identification thanks to the dE/dx. We evaluate the main sources of experimental systematic uncertainties and identify the key design aspects of the accelerator and detector that are crucial to achieve the required per mil level accuracy that matches the expected statistical accuracy.

Related

• Production and measurement of e⁺e^-→ cc signatures at the 250 GeV ILC
• Experimental prospects for precision observables in e^-e⁺→ qq with q=b,c processes at the ILC operating at 250 and 500 GeV of center of mass
• Measurement of b quark EW couplings at ILC
• A precise determination of top quark electro-weak couplings at the ILC operating at \roots=500 \GeV
• Tests of the Standard Model at the International Linear Collider