Report of the ICFA Beam Dynamics Workshop 'Accelerators for a Higgs Factory: Linear vs. Circular' (HF2012)
Alain Blondel, Alex Chao, Weiren Chou, Jie Gao, Daniel Schulte and, Kaoru Yokoya

TL;DR
This report compares linear and circular accelerator options for a Higgs factory, evaluating their physics potential, performance, upgrade paths, technology maturity, and R&D challenges.
Contribution
It provides a comprehensive comparison of four accelerator types for a Higgs factory, highlighting their advantages, limitations, and technological readiness.
Findings
Linear colliders offer high energy reach but face technical challenges.
Circular colliders provide high luminosity with mature technology.
Muon and photon colliders present alternative approaches with unique benefits.
Abstract
This paper is a summary report of the ICFA Beam Dynamics Workshop 'Accelerators for a Higgs Factory: Linear vs. Circular' (HF2012). It discusses four types of accelerators as possible candidates for a Higgs factory: linear e+e- colliders, circular e+e- colliders, muon collider and photon colliders. The comparison includes: physics reach, performance (energy and luminosity), upgrade potential, technology maturity and readiness, and technical challenges requiring further R&D.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Accelerators and Free-Electron Lasers · Particle Detector Development and Performance
