6533b85bfe1ef96bd12bac2d

RESEARCH PRODUCT

Bayesian PDF reweighting meets the Hessian methods

Pia ZuritaHannu PaukkunenHannu Paukkunen

subject

Hessian matrixPhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron Colliderta114parton distribution functionsJet (mathematics)010308 nuclear & particles physicsBayesian probabilityPartonJET DATAre-weighting methodsPROTON114 Physical sciences01 natural sciencesBayesian re-weightingsymbols.namesakeError analysisPARTON DISTRIBUTIONS0103 physical sciencessymbolsLHCHessian re-weighting010306 general physics

description

Volume: 273 New data coming from the LHC experiments have a potential to extend the current knowledge of parton distribution functions (PDFs). As a short cut to the cumbersome and time consuming task of performing a new PDF fit, re weighting methods have been proposed. In this talk, we introduce the so-called Hessian re-weighting, valid for PDF fits that carried out a Hessian error analysis, and compare it with the better-known Bayesian methods. We determine the existence of an agreement between the two approaches, and illustrate this using the inclusive jet production at the LHC. Peer reviewed

https://doi.org/10.1016/j.nuclphysbps.2015.09.248