Speaker
Description
The distribution of beam halo particles in the Large Hadron Collider (LHC) is affected by non-linear fields, in particular by the Landau octupoles used to provide tune spread for beam stabilization. These elements introduce amplitude-dependent tune shifts that deform the transverse phase-space and may alter the steady-state halo population. In this study, tracking simulations are performed to quantify the expected halo distributions for different octupole settings, without beam-beam effect, and to investigate whether such non-linear effects could contribute to the variations observed in different measurements. The analysis aims to provide a first quantitative assessment of the potential correlation between octupole-induced non-linearities and the observed beam halo characteristics in the LHC.
Funding Agency
Research supported by the HL-LHC project
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