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$\alpha_s$ from soft parton-to-hadron fragmentation functions
The QCD coupling α s is extracted at approximate next-to-next-to-leading-order (NNLO ∗ ) accuracy from the energy evolution of the first two moments (multiplicity and mean) of the parton- to-hadron fragmentation functions at low fractional hadron momentum z. Comparisons of the experimental e + e − a...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2015
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/2143932 |