Soubelet, Felix, Persson, Tobias, Tomas, Rogelio, Apsimon, Oznur and Welsch, Carsten P 
ORCID: 0000-0001-7085-0973
(2023)
Rigid waist shift: A new method for local coupling corrections in the LHC interaction regions.
PHYSICAL REVIEW ACCELERATORS AND BEAMS, 26 (5).
051001-.
Abstract
Successful operation of large-scale particle accelerators depends on the precise correction of magnet field or alignment errors present in the machine. In the Large Hadron Collider (LHC), transverse linear coupling has been shown to have a significant impact on the beam dynamics. However, current measurement methods are not sufficient for precise local coupling measurement at the interaction point. In this paper, an approach to determine interaction region local coupling corrections with a rigid waist shift based on correlated global variables such as the closest tune approach |C-| is presented. The validity of the method is demonstrated through simulations and experimental measurements taken during the LHC Run 3 commissioning in 2022, where determined corrections were applied and led to a measured luminosity increase of 9.7% and 3.5% at the ATLAS and CMS detectors, respectively.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Bioengineering |
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 03 Oct 2023 16:18 |
| Last Modified: | 15 Mar 2024 09:58 |
| DOI: | 10.1103/PhysRevAccelBeams.26.051001 |
| Open Access URL: | https://doi.org/10.1103/PhysRevAccelBeams.26.05100... |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3173390 |
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