Analysis of Higgs Self-coupling with ZHH at ILC
Yosuke Takubo
TL;DR
This paper investigates the potential to measure the Higgs self-coupling at the ILC by analyzing ZHH production and decay channels, emphasizing background rejection techniques to improve signal detection.
Contribution
It presents a study on observing ZHH events at ILC, focusing on specific decay channels and background suppression methods for Higgs self-coupling measurement.
Findings
Feasibility of observing ZHH events at ILC demonstrated.
Background rejection strategies are crucial for signal identification.
Potential to constrain Higgs self-coupling through these measurements.
Abstract
Measurement of the cross-section of ee->ZHH offers the information of the trilinear Higgs self-coupling, which is important to confirm the mechanism of the electro-weak symmetry breaking. Since there is huge background in the signal region, background rejection is key point to identify ZHH events. In this paper, we study the possibility to observe the events at ILC by using ZHH->vvHH/qqHH events.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions