English

Development of the Topological Trigger for LHCb Run 3

High Energy Physics - Experiment 2023-06-21 v2 Data Analysis, Statistics and Probability

Abstract

The data-taking conditions expected in Run 3 of the LHCb experiment at CERN are unprecedented and challenging for the software and computing systems. Despite that, the LHCb collaboration pioneers the use of a software-only trigger system to cope with the increased event rate efficiently. The beauty physics programme of LHCb is heavily reliant on topological triggers. These are devoted to selecting beauty-hadron candidates inclusively, based on the characteristic decay topology and kinematic properties expected from beauty decays. The following proceeding describes the current progress of the Run 3 implementation of the topological triggers using Lipschitz monotonic neural networks. This architecture offers robustness under varying detector conditions and sensitivity to long-lived candidates, improving the possibility of discovering New Physics at LHCb.

Cite

@article{arxiv.2306.09873,
  title  = {Development of the Topological Trigger for LHCb Run 3},
  author = {Nicole Schulte and Blaise Raheem Delaney and Niklas Nolte and Gregory Max Ciezarek and Johannes Albrecht and Mike Williams},
  journal= {arXiv preprint arXiv:2306.09873},
  year   = {2023}
}
R2 v1 2026-06-28T11:07:15.581Z