Abstract Operation of the Large Hadron Collider (LHC) requires strong octupolar magnetic
fields to suppress coherent beam instabilities. The amplitude detuning that is generated by …

Amplitude detuning measurements in the LHC have shown that a significant amount of
detuning is generated via feed-down from high-order field errors in the magnets of the …

In 2017, optics commissioning strategy for low-β* operation of the CERN Large Hadron
Collider (LHC) underwent a major revision. This was prompted by a need to extend the …

In 2017, optics commissioning strategy for low-β∗ operation of the CERN Large Hadron
Collider (LHC) underwent a major revision. This was prompted by a need to extend the …

Optics Measurement and Correction Strategies for HL-LHC Page 1 CERN-ACC-2022-0004
22/01/2024 CERN-ACC-2022-0004 . rogelio.tomas@cern.ch Optics Measurement and …

Nonlinear magnetic errors in low-β insertions can have a significant impact on the beam-
dynamics of a collider, such as the CERN Large Hadron Collider (LHC) and its luminosity …

Nonlinear optics errors in low-β* insertions pose a serious challenge to successful operation
of the HL-LHC. LHC experience however has demonstrated that the previously assumed …

Particle accelerators and colliders are established as one of the major driving forces in
fundamental particle physics research. Particle colliders have over the past decades led to …

Harmonics of the mains frequency (50 Hz) have been systematically observed in the
transverse beam spectrum of the Large Hadron Collider (LHC) since the start of its operation …

Studies of nonlinear errors in LHC experimental insertions (IRs) in Run 1 were based upon
feed-down to tune and coupling from crossing angle orbit bumps. Useful for validating the …