Speaker
Description
In the Large Hadron Collider (LHC) the multi-bunch protons beams of collide at the four main interaction points along its 26.7~\unit{\km} circumference. While global beam parameters provide a macroscopic view of machine performance, a detailed bunch-by-bunch analysis offers a unique “radiograph” of the underlying beam dynamics and collective effects. In this work, we present a comprehensive study of bunch-by-bunch performance indicators, including luminosity, emittance evolution, and beam intensity decay, using data acquired during Run 3 operation. The analysis combines information from high-resolution beam instrumentation—such as the Fast Beam Current Transformer (FBCT), the Beam Synchrotron Radiation Telescope (BSRT), and luminosity monitors from the LHC experiments—with complementary simulation studies from the Luminosity Model.
Clear and reproducible patterns are observed across bunch trains, revealing the impact of long-range beam–beam interactions, electron-cloud effects, and bunch-dependent variations. The results demonstrate the potential of bunch-by-bunch data analysis in disentangling complex interdependent effects and contribute to a deeper understanding of the LHC beam dynamics, paving the way for improved modeling for performance optimization in preparation for the High-Luminosity LHC era.
| In which format do you inted to submit your paper? | LaTeX |
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