Title Measurement of the energy dependence of hadronic jet rates and the strong coupling $\alpha_{s}$ from the four-jet rate with the DELPHI detector at LEP Author Abdallah, J. Van Remortel, N. et al. Faculty/Department Faculty of Sciences. Physics Publication type article Publication 2005 Berlin , 2005 Subject Physics Source (journal) European physical journal : C : particles and fields. - Berlin Volume/pages 38(2005) :4 , p. 413-426 ISSN 1434-6044 ISI 000226120100002 Carrier E Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp Abstract Hadronic events from the data collected with the DELPHI detector at LEP within the energy range from 89 Gev to 209 Gev are selected, their jet rates are determined and compared to predictions of four different event generators. One of them is the recently developed APACIC + + generator which performs a massive matrix element calculation matched to a parton shower followed by string fragmentation. The four-jet rate is used to measure $\alpha_s$ in the next-to-leading-order approximation yielding {\alpha_s(M_Z E-info http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000226120100002&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000226120100002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000226120100002&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle