Energy dependence of event shapes and of alpha(s) at LEP 2
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Energy dependence of event shapes and of alpha(s) at LEP 2

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Energy dependence of event shapes and of alpha(s) at LEP 2

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dc.contributor.author DELPHI Collaboration
dc.contributor.author Alemany Fernández, Reyes
dc.contributor.author Cabrera Urbán, Susana
dc.contributor.author Castillo Giménez, María Victoria
dc.contributor.author Cortina Gil, Eduardo
dc.contributor.author Ferrer Soria, Antonio
dc.contributor.author Fuster Verdú, Juan A.
dc.contributor.author García García, Carmen
dc.contributor.author Gil Botella, Inés
dc.contributor.author Hernández Rey, Juan José
dc.contributor.author Higón Rodríguez, Emilio
dc.contributor.author Martínez Vidal, Fernando
dc.contributor.author Navas Concha, Sergio
dc.contributor.author Salt Cairols, José
dc.date.accessioned 2014-03-29T13:00:27Z
dc.date.available 2014-03-29T13:00:27Z
dc.date.issued 1999
dc.identifier.uri http://dx.doi.org/10.1016/S0370-2693(99)00472-4
dc.identifier.uri http://hdl.handle.net/10550/33809
dc.description.abstract Infrared and collinear safe event shape distributions and their mean values are determined using the data taken at five different centre of mass energies above MZ with the DELPHI detector at LEP. From the event shapes, the strong coupling αs is extracted in ≀(αs2), NLLA and a combined scheme using hadronisation corrections evaluated with fragmentation model generators as well as using an analytical power ansatz. Comparing these measurements to those obtained at MZ, the energy dependence (running) of αs is accessible. The logarithmic energy slope of the inverse strong coupling is measured to bein good agreement with the QCD expectation of 1.27.
dc.relation.ispartof Physics Letters B, 1999, vol. 456, num. 2-4, p. 322-340
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source DELPHI Collaboration Alemany, R. Cabrera Urbán, Susana Castillo Giménez, María Victoria Cortina, E. Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gil, I. Hernández Rey, Juan José Higón Rodríguez, Emilio Martínez Vidal, Fernando Navas, S. Salt Cairols, José 1999 Energy dependence of event shapes and of alpha(s) at LEP 2 Physics Letters B 456 2-4 322 340
dc.subject Física nuclear
dc.subject Partícules (Física nuclear)
dc.title Energy dependence of event shapes and of alpha(s) at LEP 2
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-03-29T13:00:27Z
dc.identifier.doi http://dx.doi.org/10.1016/S0370-2693(99)00472-4
dc.identifier.idgrec 006671

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