1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Lattice correction and polarization estimation for the future circular collider e+e-

MOPM003
2 Jun 2025, 16:00
2h
Exhibiton Hall A _Magpie (TWTC)

Exhibiton Hall A _Magpie

TWTC

Poster Presentation MC1.A02 Lepton Circular Colliders Monday Poster Session

Speaker

Tatiana Pieloni (École Polytechnique Fédérale de Lausanne)

Description

Precise determination of the center-of-mass energy at the Future Circular Collider (FCC-ee) operating at the Z and W resonance energies relies on resonant spin depolarization techniques, which require a sufficient level of transverse beam polarization in the presence of machine imperfections. In this study, the FCC-ee lattice is modeled and simulated under a range of realistic imperfections, complemented by refined orbit correction and tune-matching procedures. The equilibrium polarization is computed within these realistic machine models to investigate the causes of polarization loss and explore potential improvements through lattice optimization. Additionally, spin tune shifts, which contribute to systematic errors, are estimated to support the precision requirements of the energy calibration experiment.

Funding Agency

Work supported by the Swiss Accelerator Research and Technology (CHART)

Region represented Europe
Paper preparation format LaTeX

Author

Yi Wu (École Polytechnique Fédérale de Lausanne)

Co-authors

Léon van Riesen-Haupt (École Polytechnique Fédérale de Lausanne) Mike Seidel (Paul Scherrer Institute) Tatiana Pieloni (École Polytechnique Fédérale de Lausanne)

Presentation materials

There are no materials yet.