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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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dc.contributor.author	DELPHI Collaboration
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Alemany Fernández, Reyes
dc.contributor.author	Cabrera Urbán, Susana
dc.contributor.author	Cortina Gil, Eduardo
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	García García, Carmen
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Lacasta Llácer, Carlos
dc.contributor.author	Martínez Vidal, Fernando
dc.contributor.author	Martí García, Salvador
dc.contributor.author	Navas Concha, Sergio
dc.contributor.author	Salt Cairols, José
dc.date.accessioned	2014-06-10T11:25:24Z
dc.date.available	2014-06-10T11:25:24Z
dc.date.issued	1997
dc.identifier.citation	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
dc.identifier.uri	http://hdl.handle.net/10550/36018
dc.description.abstract	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.
dc.relation.ispartof	Physics Letters B, 1997, vol. 398, num. 1-2, p. 194-206
dc.subject	Partícules (Física nuclear)
dc.subject	Violació CP (Física nuclear)
dc.subject	Detectors de radiació
dc.title	A Measurement of alpha-s from the scaling violation in e+ e- annihilation
dc.type	journal article	es_ES
dc.date.updated	2014-06-10T11:25:24Z
dc.identifier.doi	10.1016/S0370-2693(97)00256-6
dc.identifier.idgrec	006624
dc.rights.accessRights	open access	es_ES