19–24 May 2024
Music City Center
US/Central timezone

Review of MAD-X for FCC-ee studies

WEPR22
22 May 2024, 16:00
2h
Rock 'n Roll (MCC Exhibit Hall A)

Rock 'n Roll

MCC Exhibit Hall A

Poster Presentation MC5.D11 Code Developments and Simulation Techniques Wednesday Poster Session

Speaker

Angeles Faus-Golfe (Université Paris-Saclay, CNRS/IN2P3, IJCLab)

Description

The design of the electron-positron Future Circular Collider (FCC-ee) challenges the requirements on optics codes (like MAD-X) in terms of accuracy, consistency, and performance. Traditionally, MAD-X uses a transport formalism by expanding the transfer map about the origin up to second order to compute optics functions and synchrotron radiation integrals in the TWISS and EMIT modules. Conversely, particle tracking uses symplectic maps to propagate particles. These approaches solve the same problem using different approximations, resulting in a mismatch between the models used for tracking and for optics. While in a machine like LHC these differences are not relevant, for FCC-ee, given the size and the sensitivity to phase advance, the different approaches lead to important differences in the models. For instance, a tapering strategy that matches the tunes for optics needs to apply approximations that would mismatch the tune in tracking and vice versa. In this paper, we show the effectiveness of advanced methods that bring the maps used for optics and tracking closer and that will be used to reduce the gap between optics and tracking models to an acceptable level for FCC-ee studies.

Region represented Europe
Paper preparation format LaTeX

Primary author

Guillaume Simon (European Organization for Nuclear Research)

Co-authors

Angeles Faus-Golfe (Université Paris-Saclay, CNRS/IN2P3, IJCLab) Léon van Riesen-Haupt (Ecole Polytechnique Fédérale de Lausanne) Riccardo De Maria (European Organization for Nuclear Research) Tatiana Pieloni (Ecole Polytechnique Fédérale de Lausanne)

Presentation materials

There are no materials yet.