A Measurement of alpha-s from the scaling violation in e+ e- annihilation
NAGIOS: RODERIC FUNCIONANDO

A Measurement of alpha-s from the scaling violation in e+ e- annihilation

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A Measurement of alpha-s from the scaling violation in e+ e- annihilation

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DELPHI Collaboration; Ferrer Soria, Antonio Perfil; Higón Rodríguez, Emilio Perfil; Castillo Giménez, María Victoria Perfil; Alemany Fernández, Reyes; Cabrera Urbán, Susana Perfil; Cortina Gil, Eduardo; Fuster Verdú, Juan A. Perfil; García García, Carmen Perfil; Hernández Rey, Juan José Perfil; Lacasta Llácer, Carlos; Martínez Vidal, Fernando Perfil; Martí García, Salvador; Navas Concha, Sergio; Salt Cairols, José Perfil
This document is a artículoDate1997

Este documento está disponible también en : http://dx.doi.org/10.1016/S0370-2693(97)00256-6
The hadronic fragmentation functions of the various quark flavours and of gluons are measured in a study of the inclusive hadron production from Z0 decays with the DELPHI detector and are compared with the fragmentation functions measured elsewhere at energies between 14 GeV and 91 GeV. A large scaling violation is observed, which is used to extract the strong coupling constant from a fit using a numerical integration of the second order DGLAP evolution equations. The result is αs(Mz) = 0.124+0.006-0.007 (exp) +/- 0.009 (theory) where the first error represents the experimental uncertainty and the second error is due to the factorization and renormalization scale dependence.

    DELPHI Collaboration Ferrer Soria, Antonio Higón Rodríguez, Emilio Castillo Giménez, María Victoria 1997 A Measurement of alpha-s from the scaling violation in e+ e- annihilation Physics Letters B 398 1-2 194 206
http://dx.doi.org/10.1016/S0370-2693(97)00256-6
distribuido bajo licencia Creative Commons de Reconocimiento-NoComercial 3.0 No adaptada

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