Measurement of the branching ratio for the process b ->tau(-)(nu)over-bar(tau)X

G Abbiendi; C Ainsley; PF Akesson; G Alexander; J Allison; G Anagnostou; KJ Anderson; S Arcelli; S Asai; D Axen; G Azuelos; I Bailey; E Barberio; RJ Barlow; RJ Batley; T Behnke; KW Bell; PJ Bell; G Bella; A Bellerive; S Bethke; O Biebel; IJ Bloodworth; O Boeriu; P Bock; J Bohme; D Bonacorsi; M Boutemeur; S Braibant; L Brigliadori; RM Brown; HJ Burckhart; J Cammin; RK Carnegie; B Caron; AA Carter; JR Carter; CY Chang; DG Charlton; PEL Clarke; E Clay; I Cohen; J Couchman; A Csilling; M Cuffiani; S Dado; GM Dallavalle; S Dallison; A De Roeck; EA De Wolf; P Dervan; K Desch; B Dienes; MS Dixit; M Donkers; J Dubbert; E Duchovni; G Duckeck; IP Duerdoth; E Etzion; F Fabbri; L Feld; P Ferrari; F Fiedler; I Fleck; M Ford; A Frey; A Furtjes; DI Futyan; P Gagnon; JW Gary; G Gaycken; C Geich-Gimbel; G Giacomelli; P Giacomelli; D Glenzinski; J Goldberg; K Graham; E Gross; J Grunhaus; M Gruwe; PO Gunther; A Gupta; C Hajdu; M Hamann; GG Hanson; K Harder; A Harel; M Harin-Dirac; M Hauschild; J Hauschildt; CM Hawkes; R Hawkings; RJ Hemingway; C Hensel; G Herten; RD Heuer; JC Hill; K Hoffman; RJ Homer; D Horvath; KR Hossain; R Howard; P Huntemeyer; P Igo-Kemenes; K Ishii; A Jawahery; H Jeremie; CR Jones; P Jovanovic; TR Junk; N Kanaya; J Kanzaki; G Karapetian; D Karlen; V Kartvelishvili; K Kawagoe; T Kawamoto; RK Keeler; RG Kellogg; BW Kennedy; DH Kim; K Klein; A Klier; S Kluth; T Kobayashi; M Kobel; TP Kokott; S Komamiya; RW Kowalewski; T Kramer; T Kress; P Krieger; J von Krogh; D Krop; T Kuhl; M Kupper; P Kyberd; GD Lafferty; H Landsman; D Lanske; I Lawson; JG Layter; A Leins; D Lellouch; J Letts; L Levinson; J Lillich; C Littlewood; SL Lloyd; FK Loebinger; GD Long; MJ Losty; J Lu; J Ludwig; A Macchiolo; A Macpherson; W Mader; S Marcellini; TE Marchant; AJ Martin; JP Martin; G Martinez; G Masetti; T Mashimo; P Mattig; WJ McDonald; J McKenna; TJ McMahon; RA McPherson; F Meijers; P Mendez-Lorenzo; W Menges; FS Merritt; H Mes; A Michelini; S Mihara; G Mikenberg; DJ Miller; S Moed; W Mohr; T Mori; A Mutter; K Nagai; I Nakamura; HA Neal; R Nisius; SW O'Neale; A Oh; A Okpara; MJ Oreglia; S Orito; C Pahl; G Pasztor; JR Pater; GN Patrick; JE Pilcher; J Pinfold; DE Plane; B Poli; J Polok; O Pooth; A Quadt; K Rabbertz; C Rembser; P Renkel; H Rick; N Rodning; JM Roney; S Rosati; K Roscoe; Y Rozen; K Runge; DR Rust; K Sachs; T Saeki; O Sahr; EKG Sarkisyan; C Sbarra; AD Schaile; O Schaile; P Scharff-Hansen; C Schmitt; M Schroder; M Schumacher; C Schwick; WG Scott; R Seuster; TG Shears; BC Shen; CH Shepherd-Themistocleous; P Sherwood; A Skuja; AM Smith; GA Snow; R Sobie; S Soldner-Rembold; S Spagnolo; F Spano; M Sproston; A Stahl; K Stephens; D Strom; R Strohmer; L Stumpf; B Surrow; S Tarem; M Tasevsky; RJ Taylor; R Teuscher; J Thomas; MA Thomson; E Torrence; D Toya; T Trefzger; A Tricoli; I Trigger; Z Trocsanyi; E Tsur; MF Turner-Watson; I Ueda; B Ujvari; B Vachon; CF Vollmer; P Vannerem; M Verzocchi; H Voss; J Vossebeld; D Waller; CP Ward; DR Ward; PM Watkins; AT Watson; NK Watson; PS Wells; T Wengler; N Wermes; D Wetterling; GW Wilson; JA Wilson; TR Wyatt; S Yamashita; V Zacek; D Zer-Zion

Journal article

Measurement of the branching ratio for the process b ->tau(-)(nu)over-bar(tau)X

G Abbiendi, C Ainsley, PF Akesson, G Alexander, J Allison, G Anagnostou, KJ Anderson, S Arcelli, S Asai, D Axen, G Azuelos, I Bailey, E Barberio, RJ Barlow, RJ Batley, T Behnke, KW Bell, PJ Bell, G Bella, A Bellerive Show all

PHYSICS LETTERS B | ELSEVIER SCIENCE BV | Published : 2001

DOI: 10.1016/S0370-2693(01)01012-7

Abstract

The inclusive branching ratio for the process b → τ-ν̄τX) has been measured using hadronic Z decays collected by the OPAL experiment at LEP in the years 1992-2000. The result is: BR(b → τ-ν̄τX) = (2.78 ± 0.18 ± 0.51)%. This measurement is consistent with the Standard Model expectation and puts a constraint of tan β/MH± < 0.53 GeV-1 at the 95% confidence level on Type II Two Higgs Doublet Models. © 2001 Elsevier Science B.V. All rights reserved.