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arXiv · 1009.6145

Global Analysis of Fragmentation Functions for Eta Mesons

C. A. Aidala·F. Ellinghaus·R. Sassot·J. P. Seele·M. Stratmann
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Abstract

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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C. A. Aidala, F. Ellinghaus, R. Sassot, J. P. Seele, M. Stratmann. 2010-09-30. Global Analysis of Fragmentation Functions for Eta Mesons. https://doi.org/10.1103/physrevd.83.034002

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