Delphine Jacquet (CERN)
MOPL045
Operational beta* levelling at the LHC in 2022 and beyond
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During the third run period of the CERN Large Hadron Collider (LHC), as well as for the future High-Luminosity LHC era, luminosity levelling by beta* is a key technique to control the pile-up in the high-luminosity experiments ATLAS and CMS while maintaining Landau damping through the head-on beam-beam interaction. This implies changing the machine optics in the interaction regions while keeping high-intensity beams in collision and the experimental detectors in their data taking configuration. This contribution summarizes the implementation and operational experiences obtained during the first year of operation with beta* levelling at the LHC and provides an outlook for the following years, when the beta* levelling range will be further extended.
Paper: MOPL045
DOI: reference for this paper: 10.18429/JACoW-IPAC2023-MOPL045
About: Received: 21 Apr 2023 — Revised: 09 May 2023 — Accepted: 12 May 2023 — Issue date: 26 Sep 2023