Global analysis of fragmentation functions for eta mesons
Global analysis of fragmentation functions for eta mesons
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DOI:
10.1103/physrevd.83.034002
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发表时间:
2011-02-01
影响因子:
5
通讯作者:
Stratmann, Marco
中科院分区:
文献类型:
--
作者:
Aidala, Christine A.;Ellinghaus, Frank;Stratmann, Marco
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.