Global analysis of fragmentation functions for eta mesons
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 utiliz...
| Autores principales: | , , , , |
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| Formato: | Artículo publishedVersion |
| Publicado: |
2011
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_15507998_v83_n3_p_Aidala https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_15507998_v83_n3_p_Aidala_oai |
| Aporte de: |
| Sumario: | 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. © 2011 American Physical Society. |
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