6533b7d1fe1ef96bd125c397

RESEARCH PRODUCT

Global analysis of fragmentation functions for eta mesons

Frank EllinghausFrank EllinghausMarco StratmannMarco StratmannChristine Angela AidalaJ. SeeleJ. SeeleRodolfo Sassot

subject

Nuclear and High Energy PhysicsParticle physicsMesonCiencias FísicasElectron–positron annihilationHadronFOS: Physical sciencesElementary particle//purl.org/becyt/ford/1 [https]symbols.namesakeHigh Energy Physics - Phenomenology (hep-ph)Fragmentation FunctionsNuclear ExperimentQuantum chromodynamicsPhysicsAnnihilation//purl.org/becyt/ford/1.3 [https]QcdEtaAstronomíaHigh Energy Physics - PhenomenologyLagrange multiplierData analysissymbolsHigh Energy Physics::ExperimentCIENCIAS NATURALES Y EXACTASHadronization

description

Fragmentation functions for eta mesons are extracted at next-to-leading order accuracy of QCD in a global analysis of data taken in electron-positron annihilation and proton-proton scattering experiments. The obtained parametrization is in good agreement with all data sets analyzed and can be utilized, for instance, in future studies of double-spin asymmetries for single-inclusive eta production. The Lagrange multiplier technique is used to estimate the uncertainties of the fragmentation functions and to assess the role of the different data sets in constraining them.