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Article Dans Une Revue European Physical Journal C: Particles and Fields Année : 2015

SoftKiller, a particle-level pileup removal method

Résumé

Existing widely used pileup removal approaches correct the momenta of individual jets. In this article we intro-duce an event-level, particle-based pileup correction proce-dure, 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.
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Dates et versions

hal-01116510 , version 1 (13-02-2015)

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Matteo Cacciari, Gavin P. Salam, Gregory Soyez. SoftKiller, a particle-level pileup removal method. European Physical Journal C: Particles and Fields, 2015, 75, pp.59. ⟨10.1140/epjc/s10052-015-3267-2⟩. ⟨hal-01116510⟩
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