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arXiv · 2512.03997

Comment on "Monochromatization interaction region optics design for direct s-channel Higgs production at FCC-ee"

Dmitry Shatilov
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Abstract

The original article [1] can be logically divided into two parts: 1) the selection of main parameters for monochromatization and 2) interaction region optics design; the comment pertains only to the first part. The authors of [1] state that "The purpose of this paper is to report on the development of realistic IR optics designs for monochromatization at the FCC-ee". However, the proposed parameters do not seem very realistic and raise many questions; due to space limitations, we will only consider the most important ones.

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Dmitry Shatilov. 2025-12-03. Comment on "Monochromatization interaction region optics design for direct s-channel Higgs production at FCC-ee". https://doi.org/10.1016/j.nima.2026.171316

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