منابع مشابه
SoftKiller, a particle-level pileup removal method
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 rob...
متن کاملData-driven estimation of neutral pileup particle multiplicity in high-luminosity hadron collider environments
The upcoming operation regimes of the Large Hadron Collider are going to place stronger requirements on the rejection of particles originating from pileup, i.e. from interactions between other protons. For this reason, particle weighting techniques have recently been proposed in order to subtract pileup at the level of individual particles. We describe a choice of weights that, unlike others th...
متن کاملPileup subtraction for jet shapes.
Jets in high energy hadronic collisions often contain the fingerprints of the particles that produced them. Those fingerprints, and thus the nature of the particles that produced the jets, can be read off with the help of quantities known as jet shapes. Jet shapes are, however, severely affected by pileup, the accumulation in the detector of the residues of the many simultaneous collisions taki...
متن کاملPileup subtraction using jet areas
One of the major challenges for the LHC will be to extract precise information from hadronic final states in the presence of the large number of additional soft pp collisions, pileup, that occur simultaneously with any hard interaction in high luminosity runs. We propose a novel technique, based on jet areas, that provides jet-by-jet corrections for pileup and underlying-event effects. It is da...
متن کاملEvent Pileup in Charge-coupled Devices
The problem of event pileup in single-photonÈcounting CCD cameras (e.g., in the X-ray regime) is discussed, and a solution to the problem is proposed. The resulting pileup equation includes the e†ects of grade migration and presents itself as a nonlinear modiÐcation to the standard integral equation used by forward-folding spectral-Ðtting programs. The e†ectiveness of the model is demonstrated ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2014
ISSN: 1029-8479
DOI: 10.1007/jhep10(2014)059