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@unpublished{jiang:eefact2022-thyas0202, author = {H.P. Jiang and A. Faus-Golfe and K. Oide and Z.D. Zhang and F. Zimmermann}, title = {{Optics Design for a Monochromatization Scheme for the Direct S-Channel Higgs Production at FCC-ee Collider}}, % booktitle = {Proc. eeFACT'22}, booktitle = {Proc. ICFA Adv. Beam Dyn. Workshop High Luminosity Circular e+e- Colliders (eeFACT'22)}, language = {english}, intype = {presented at the}, series = {ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e- Colliders}, number = {65}, venue = {Frascati, Italy}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {02}, year = {2022}, note = {presented at eeFACT'22 in Frascati, Italy, unpublished}, abstract = {{The FCC-ee collider baseline foresees four different energy operation modes: Z, WW, H(ZH) and ttbar. An optional fifth mode, called s-channel Higgs production mode, could allow the measurement of the electron Yukawa coupling, in dedicated runs at 125 GeV centre-of-mass energy, provided that the centre-of-mass energy spread, can be reduced by at least an order of magnitude (5-10 MeV). The use of a special collision technique known as monochromatization scheme (mono-scheme) is one way to accomplish it. The transverse monochromatization scheme consists of introducing a dispersion function different from zero but of opposite sign for the two colliding beams at the Interaction Point (IP); In this paper, we will report about the trade-off between energy spread and luminosity, and the first attempt to design a new optics to implement a transverse monochromatic scheme for the FCC-ee Higgs production.}}, }