Speaker
Description
During the LHC Ion Run in 2023, the ALICE detector observed a high level of background that prevented efficient data taking. This background was caused by different ion species generated in the betatronic collimation region that were intercepted by the Tertiary collimator near ALICE interaction point. The mass-to-charge ratio of these generated ions cause them to follow a different trajectory to the main ion beam, similar to off momentum particles. Since, this is a single-turn effect, the closed dispersion does not describe the trajectory of these ions. Instead, the single-pass or one-pass dispersion is the relevant quantity to measure. In this paper two methods for reconstructing the single-pass dispersion based on closed orbit and optics data are described. The methods are validated through simulations and applied to real data from the LHC Ion Runs in 2023 and 2024.
| Region represented | Europe |
|---|---|
| Paper preparation format | LaTeX |
