SoftKiller, a particle-level pileup removal method
Matteo Cacciari, Gavin P. Salam, Gregory Soyez

TL;DR
SoftKiller is a new particle-level pileup removal method that dynamically removes soft particles, improving jet resolution and computational speed compared to existing approaches.
Contribution
It introduces a novel event-level, particle-based pileup correction method that is more efficient and effective than traditional jet-based techniques.
Findings
Improves jet resolution performance in simulations.
Nearly two orders of magnitude faster than jet-area methods.
Robust across different event conditions.
Abstract
Existing widely-used pileup removal approaches correct the momenta of individual jets. In this article we introduce an event-level, particle-based pileup correction procedure, SoftKiller. It removes the softest particles in an event, up to a transverse momentum threshold that is determined dynamically on an event-by-event basis. In simulations, this simple procedure appears to be reasonably robust and brings superior jet resolution performance compared to existing jet-based approaches. It is also nearly two orders of magnitude faster than methods based on jet areas.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
