Global Analysis of Fragmentation Functions for Eta Mesons

Details Global Analysis of Fragmentation Functions for Eta Mesons Global Analysis of Fragmentation Functions for Eta Mesons

2010-09-30

arxiv.org/abs/1009.6145v2

Phys.Rev.D83:034002,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 8 figures, updated references

Scientific paper

10.1103/PhysRevD.83.034002

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.

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