LHC Optics Measurement with Proton Tracks Detected by the Roman Pots of the TOTEM Experiment

Abstract

Precise knowledge of the beam optics at the LHC is crucial to fulfil the physics goals of the TOTEM experiment, where the kinematics of the scattered protons is reconstructed with the near-beam telescopes -- so-called Roman Pots (RP). Before being detected, the protons' trajectories are influenced by the magnetic fields of the accelerator lattice. Thus precise understanding of the proton transport is of key importance for the experiment. A novel method of optics evaluation is proposed which exploits kinematical distributions of elastically scattered protons observed in the RPs. Theoretical predictions, as well as Monte Carlo studies, show that the residual uncertainty of this optics estimation method is smaller than 0.25 percent.

20 pages, 11 figures, 5 figures, to be submitted to New J. Phys

Cited by in corpus (6)

• Proton reconstruction with the CMS-TOTEM Precision Proton Spectrometer
• Recent Results from the CERN LHC Experiment TOTEM -- Implications for Odderon Exchange
• Hard color-singlet exchange in dijet events in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of single-diffractive dijet production in proton-proton collisions at $\sqrt{s}=$ 8 TeV with the CMS and TOTEM experiments
• Study of deeply virtual Compton scattering at the future Electron-Ion Collider
• Proton reconstruction with the TOTEM Roman pot detectors for high-${\beta }^{\ast }$ LHC data