Measurements of [formula omitted] in [formula omitted] collisions at [formula omitted] between 182 and 209 GeV

G Abbiendi,A Mutter,G Mikenberg,P Scharff-Hansen,J Lillich,M Boutemeur,M Giunta,S Söldner-Rembold,M Ford,E Torrence,K Runge,J Dubbert,S Braibant,W Mohr,G Duckeck,M Gruwé,P Bock,D Zer-Zion,H Voss,J Grunhaus,D Toya,D Karlen,M Przybycień,A De Roeck,C Pahl,A Michelini,I Nakamura,T Kawamoto,D Axen,P Vannerem,P Gagnon,H Landsman,P Mättig,P Renkel,T Saeki,M Hamann,J Ludwig,E Tsur,M Donkers,P Amaral,T Behnke,J Goldberg,W Menges,M Hauschild,T Kobayashi,G Giacomelli,H Nanjo,D Lanske,J Von Krogh,S Orito,H Mes,A Frey,C Ainsley,O Schaile,K Sachs,D Lellouch,C Y Chang ,R J Batley ,T Krämer,F Fabbri,L J Levinson ,I Fleck,M Schumacher,A J Martin ,P J Bell ,B Ujvári,M A Thomson ,J R Pater ,J Letts,P Sherwood,A Quadt,K Kawagoe,S Komamiya,R D Heuer ,B Dienes,G Wolf,J R Carter ,R G Kellogg ,G Herten,G Hanson ,T Barillari,G Benelli,D Horváth,O Boeriu,K Rabbertz,P M Watkins ,H A Neal ,A Gupta,A Bellerive,R Keeler ,D E Plane ,Á Csilling ,T R Junk ,P Giacomelli,Ch Geich-Gimbel ,A M Smith ,R J Hawkings ,D G Charlton ,J W Gary ,S Asai,A Ludwig,H Burckhart ,R Sobie,S L Lloyd ,P Bechtle,J L Pinfold ,T Wengler,M J Oreglia ,P Ferrari,A Fanfani,K Desch,R M Brown ,N T Meyer ,F Spanò ,J C Hill ,G Alexander,P S Wells ,A Harel,C Ciocca,G D Lafferty ,M Cuffiani,C Rembser,I Ueda,M Küpper ,P Krieger,A Oh,S W O’neale ,J Kanzaki,A T Watson ,A D Schaile ,R Seuster,E Etzion,T Mäshimo ,A Montanari,G Anagnostou,K J Anderson ,Z L Trócsányi ,J M Roney ,P Tran,T Schörner-Sadenius,E Gross,S Kluth,C Hajdú ,R J Barlow ,S Marcellini,D J Miller ,E Barberio,G Masetti,M F Turner-Watson ,B C Shen ,I M Trigger ,F K Loebinger ,R Nisius,S Mihara,F Meijers,K Ishii,J E Pilcher ,O Pooth,K W Bell ,S Tarem,T Shears ,A Skuja,S Campana,C M Hawkes ,R K Carnegie ,J A Wilson ,N K Watson ,Shinji Yamashita ,J Allison,R J Hemingway ,I P Duerdoth ,G W Wilson ,N Wermes,O Biebel,K D Hoffman ,D R Ward ,C F Vollmer ,R Vértesi,A Stahl,R Ströhmer,C P Ward ,R J Teuscher ,P O Günther ,E K.g Sarkisyan ,F S Merritt ,S Bethke,F Fiedler,G Bella,J A Mckenna ,Y Rozen,W F Mader ,P Igo‐Kemenes ,J Vossebeld,A A Carter ,M Schröder,M Taševský ,J Lu,P F Åkesson ,P Jovanović ,G Pásżtor ,D Strom,T R Wyatt ,T Kühl ,B W Kennedy ,M Verzocchi,J Schieck,K Nagai,E Duchovni,E A De Wolf ,R A Mcpherson ,I Bailey,M Kobel,T Mori,S Dado,H Jérémie ,L Živković

doi:10.1016/j.physletb.2005.01.031

Measurements of [formula omitted] in [formula omitted] collisions at [formula omitted] between 182 and 209 GeV

G Abbiendi, A Mutter + Show 214 more

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https://doi.org/10.1016/j.physletb.2005.01.031

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Journal: Physics Letters B	Publication Date: Jan 25, 2005
Citations: 3	License type: mit

Affiliation: INFN Sezione di Bologna, University of Bologna, University of Freiburg, Tel Aviv University, University of Birmingham, Fermi National Accelerator Laboratory, University of Chicago, Kobe University, The University of Tokyo, Rutherford Appleton Laboratory, University of British Columbia, Universität Hamburg, European Organization for Nuclear Research, Cavendish Hospital, University of Manchester, University of Bonn, University of Victoria

#Standard Model Expectation #OPAL Experiment + Show 6 more

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Abstract

Measurements of Rb, the ratio of the bb¯ cross-section to the qq¯ cross-section in e+e− collisions, are presented. The data were collected by the OPAL experiment at LEP at centre-of-mass energies between 182 and 209 GeV. Lepton, lifetime and event-shape information is used to tag events containing b quarks with high efficiency. The data are compatible with the Standard Model expectation. The mean ratio of the eight measurements reported here to the Standard Model prediction is 1.055±0.031±0.037, where the first error is statistical and the second systematic.

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