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Determination of alpha-s in second order QCD from hadronic Z decays

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Determination of alpha-s in second order QCD from hadronic Z decays

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dc.contributor.author	DELPHI Collaboration
dc.contributor.author	Allen, Paul
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Fez Laso, M. D. M. de
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	García García, Carmen
dc.contributor.author	Gómez Cadenas, Juan José
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Lozano Bahilo, José Julio
dc.contributor.author	Lacasta Llácer, Carlos
dc.contributor.author	Martí García, Salvador
dc.contributor.author	Salt Cairols, José
dc.contributor.author	Sánchez Rojo, María Ester
dc.contributor.author	Valls Ferrer, Juan Antonio
dc.contributor.author	Zúñiga Román, Juan
dc.date.accessioned	2016-05-27T09:14:09Z
dc.date.available	2016-05-27T09:14:09Z
dc.date.issued	1992
dc.identifier.citation	DELPHI Collaboration Allen, Paul Castillo Giménez, María Victoria Fez Laso, M. D. M. de Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gómez Cadenas, Juan José Hernández Rey, Juan José Higón Rodríguez, Emilio Lozano Bahilo, José Julio Lacasta Llácer, Carlos Martí García, Salvador Salt Cairols, José Sánchez Rojo, María Ester Valls Ferrer, Juan Antonio Zúñiga Román, Juan 1992 Determination of alpha-s in second order QCD from hadronic Z decays Zeitschrift für Physik C-Particles and Fields 54 1 55 73
dc.identifier.uri	http://hdl.handle.net/10550/53842
dc.description.abstract	Distributions of event shape variables obtained from 120600 hadronic Z decays measured with the DELPHI detector are compared to the predictions of QCD based event generators. Values of the strong coupling constant alpha(s) are derived as a function of the renormalization scale from a quantitative analysis of eight hadronic distributions. The final result, alpha(s) (M(Z)) = 0.113 +/- 0.007, is based on second order perturbation theory and uses two hadronization corrections, one computed with a parton shower model and the other with a QCD matrix element model.
dc.language.iso	eng
dc.relation.ispartof	Zeitschrift für Physik C-Particles and Fields, 1992, vol. 54, num. 1, p. 55-73
dc.subject	Física nuclear
dc.title	Determination of alpha-s in second order QCD from hadronic Z decays
dc.type	journal article	es_ES
dc.date.updated	2016-05-27T09:14:09Z
dc.identifier.doi	10.1007/BF01881708
dc.identifier.idgrec	070938
dc.rights.accessRights	open access	es_ES