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URLhttps://doi.org/10.18429/JACoW-IPAC2023-MOPL079
TitleMonochromatization Interaction Region Optics Design for Direct s-channel production at FCC-ee
Authors
  • Z. Zhang
    Institute of High Energy Physics
  • A. Faus-Golfe
    Université Paris-Saclay, CNRS/IN2P3, IJCLab
  • B. Bai
    Harbin Institute of Technology, Shenzhen
  • F. Zimmermann
    European Organization for Nuclear Research
  • H. Jiang
    Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
  • K. Oide
    Geneva University
AbstractOne of the most fundamental measurements since the Higgs boson discovery, is its Yukawa couplings. Such a measurement is only feasible, if the centre-of-mass (CM) energy spread of the e+e- collisions can be reduced from ~50 MeV to a level comparable to the Higgs boson’s natural width of ~4 MeV. To reach such desired collision energy spread and improve the CM energy resolution in colliding-beam experiments, the concept of a monochromatic colliding mode has been proposed as a new mode of operation in FCC-ee. This monochromatization mode could be achieved by generating a nonzero dispersion function of opposite signs for the two beams, at the Interaction Point (IP). Several methods to implement a monochromatization colliding scheme are possible, in this paper we report the implementation of such a scheme by means of dipoles. More in detail a new Interaction Region (IR) optics design for FCC-ee at 125 GeV (direct Higgs s-channel production) has been designed and the first beam dynamics simulations are in progress.
Paperdownload: MOPL079.pdf
CiteBibTeX, LaTeX, Text/Word, RIS, EndNote
Conference14th International Particle Accelerator Conference
Series
LocationVenice, Italy
Date07-12 May 2023
PublisherJACoW Publishing, Geneva, Switzerland
Editorial BoardRalph Assmann - Deutsches Elektronen-Synchrotron DESY Peter McIntosh - Science and Technology Facilities Council (STFC/DL/ASTeC) Giovanni Bisoffi - Istituto Nazionale di Fisica Nucleare (INFN/LNL) Alessandro Fabris - Elettra-Sincrotrone Trieste S.C.p.A. Ivan Andrian - Elettra-Sincrotrone Trieste S.C.p.A. Giulia Vinicola - Istituto Nazionale di Fisica Nucleare (INFN/LNF)
Online ISBN978-3-95450-231-8
Online ISSN2673-5490
Received03 May 2023
Revised07 May 2023
Accepted15 June 2023
Issued26 September 2023
DOI10.18429/JACoW-IPAC2023-MOPL079
Pages738-741