Optimal transport for a novel event description at hadron colliders
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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
Engineering topics
Maier, B. (ORCID:0000000152707540)
Publications and source records attributed to Maier, B. (ORCID:0000000152707540).
Pile-up mitigation using attention
Abstract Particle production from secondary proton-proton collisions, commonly referred to as pile-up, impair the sensitivity of both new physics searches and precision measurements at large hadron collider (LHC) experiments. We propose a novel algorithm, Puma , for modeling pile-up with the help of deep neural networks based on sparse transformers. These attention mechanisms were developed for natural language processing but have become popular in other applications. In a realistic detector simulation, our method outperforms classical benchmark algorithms for pile-up mitigation in key observables. It provides a perspective for mitigating the effects of pile-up in the high luminosity era of the LHC, where up to 200 proton-proton collisions are expected to occur simultaneously.
47 OTHER INSTRUMENTATION↗