Hector, a fast simulator for the transport of particles in beamlines

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Abstract
Computing the trajectories of particles in generic beamlines is an important step required in accelerator physics, in particular for forward detectors. A new tool, Hector, was build for such calculation, using the transfer matrix approach and energy corrections. The limiting aperture effects are taken into account in the description of particle paths. As an illustration, the tool was applied on both LHC beamlines, in particular around the CMS experiment, and validated with results of the Mad-X simulator. Beam profiles, paths and beta functions are presented. Assuming some forward detector scenarios away from the CMS experiment, acceptance plots, irradiation doses and chromaticity grids are produced. Furthermore, the reconstruction of variables at the interaction point (energy, positions and angles) is studied and, subsequently, the impact of the misalignment of beamline optical elements.

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