Title
Measurement of the semileptonic b branching fractions and average b mixing parameter in Z decays
Date Issued
01 January 2001
Access level
open access
Resource Type
journal article
Author(s)
Abreu P.
Adam W.
Adye T.
Adzic P.
Ajinenko I.
Albrecht Z.
Alderweireld T.
Alekseev G.D.
Alemany R.
Allmendinger T.
Allport P.P.
Almehed S.
Amaldi U.
Amapane N.
Amato S.
Anassontzis E.G.
Andersson P.
Andreazza A.
Andringa S.
Antilogus P.
Apel W.D.
Arnoud Y.
Asman B.
Augustin J.E.
Augustinus A.
Baillon P.
Ballestrero A.
Bambade P.
Barao F.
Barbiellini G.
Barbier R.
Bardin D.Y.
Barker G.
Baroncelli A.
Battaglia M.
Baubillier M.
Becks K.H.
Begalli M.
Behrmann A.
Beilliere P.
Belokopytov Y.
Benekos N.C.
Benvenuti A.C.
Berat C.
Berggren M.
Berntzon L.
Bertrand D.
Besancon M.
Bilenky M.S.
Bizouard M.A.
Bloch D.
Blom H.M.
Bonesini M.
Boonekamp M.
Booth P.S.L.
Borisov G.
Bosio C.
Botner O.
Boudinov E.
Bouquet B.
Bourdarios C.
Bowcock T.J.V.
Boyko I.
Bozovic I.
Bozzo M.
Bracko M.
Branchini P.
Brenner R.A.
Bruckman P.
Brunet J.M.
Bugge L.
Buran T.
Buschbeck B.
Buschmann P.
Cabrera S.
Caccia M.
Calvi M.
Camporesi T.
Canale V.
Carena F.
Carroll L.
Caso C.
Castillo Gimenez M.V.
Cattai A.
Cavallo F.R.
Charpentier P.
Checchia P.
Chelkov G.A.
Chierici R.
Chliapnikov P.
Chochula P.
Chorowicz V.
Chudoba J.
Cieslik K.
Collins P.
Contri R.
Cortina E.
Cosme G.
Cossutti F.
Costa M.
Publisher(s)
Springer New York LLC
Abstract
The semileptonic branching fractions for primary and cascade b decays BR(b → l-), BR(b → c → l+) and BR(b → c̄ → l- were measured in hadronic Z decays collected by the DELPHI experiment at LEP. The sample was enriched in b decays using the lifetime information and various techniques were used to separate leptons from direct or cascade b decays. By fitting the momentum spectra of di-leptons in opposite jets, the average b mixing parameter x̄ was also extracted. The following results have been obtained: (equation presented).
Start page
455
End page
478
Volume
20
Issue
3
Language
English
OCDE Knowledge area
Física nuclear
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-0012510217
Source
European Physical Journal C
ISSN of the container
14346044
Sources of information:
Directorio de Producción Científica
Scopus