International Workshop on Future Linear Colliders 2025

Impact of Higher-Order Optics on Beam Size and Luminosity in the CLIC Final Focus System

23 Oct 2025, 11:50

20m

Aula 1.3 (ADEIT)

Talk Damping rings, Beam dynamics, Beam delivery systems Damping rings, Beam dynamics, Beam delivery systems

Speaker

Conrad Caliari (CERN)

Description

We hypothesize that third- and higher-order treatment of particle optics have a minor impact on the beam size at the interaction point (IP)
and on the resulting luminosity, compared to linear and second-order contributions.
To test this, we are conducting a comprehensive simulation campaign using PLACET, GuineaPig, and MAPCLASS to quantify the correlation
between IP beam size and luminosity across small variations in the CLIC Final Focus System (FFS) optics.
The results are expected to inform and guide future optimization of the FFS design.