Measurement of the B0s lifetime and study of B0s-B0s oscillations using Dsℓ events

Abreu P.; Adam W.; Adye T.; Adzic P.; 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.; Åsman B.; Augustin J.E.; Augustinus A.; Baillon P.; 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.; Belous K.; Benekos N.C.; Benvenuti A.C.; Berat C.; Berggren M.; Bertini D.; Bertrand D.; Besancon M.; Bigi M.; Bilenky M.S.; Bizouard M.A.; Bloch D.; Blom H.M.; Bonesini M.; Boonekamp M.; Booth P.S.L.; Borgland A.W.; 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.; Brenke T.; Brenner R.A.; Bruckman P.; Brunet J.M.; Bugge L.; Buran T.; Burgsmueller T.; Buschbeck B.; Buschmann P.; Cabrera S.; Caccia M.; Calvi M.; Camporesi T.; Canale V.; Carena F.; Carroll L.; Caso C.; CastilloGimenez M.V.; Cattai A.; Cavallo F.R.; Chabaud V.; Chapkin M.; Charpentier P.; Chaussard L.; Checchia P.; Chelkov G.A.; Chierici R.; Chliapnikov P.; Chochula P.; Chorowicz V.; Chudoba J.; Cieslik K.

Title

Date Issued

01 January 2000

Access level

open access

Resource Type

journal article

Author(s)

Abreu P.

Adam W.

Adye T.

Adzic P.

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.

Åsman B.

Augustin J.E.

Augustinus A.

Baillon P.

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.

Belous K.

Benekos N.C.

Benvenuti A.C.

Berat C.

Berggren M.

Bertini D.

Bertrand D.

Besancon M.

Bigi M.

Bilenky M.S.

Bizouard M.A.

Bloch D.

Blom H.M.

Bonesini M.

Boonekamp M.

Booth P.S.L.

Borgland A.W.

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.

Brenke T.

Brenner R.A.

Bruckman P.

Brunet J.M.

Bugge L.

Buran T.

Burgsmueller T.

Buschbeck B.

Buschmann P.

Cabrera S.

Caccia M.

Calvi M.

Camporesi T.

Canale V.

Carena F.

Carroll L.

Caso C.

CastilloGimenez M.V.

Cattai A.

Cavallo F.R.

Chabaud V.

Chapkin M.

Charpentier P.

Chaussard L.

Checchia P.

Chelkov G.A.

Chierici R.

Chliapnikov P.

Chochula P.

Chorowicz V.

Chudoba J.

Cieslik K.

Publisher(s)

Springer New York LLC

Abstract

Lifetime and oscillations of B0s mesons have been studied in events with a large transverse momentum lepton and a Ds of opposite electric charge in the same hemisphere, selected from about, 3.6 million hadronic Z0 decays accumulated by DELPHI between 1992 and 1995. The B0s lifetime and the fractional width difference between the two physical B0s states have been found to be: τB0s = (1.42+0.14-0.13(stat.) ± 0.03(syst.)) ps ΔΓB0s/ΓB0s < 0.46 at the 95% C.L. In the latter result it has been assumed that τB0s = τB0d. Using the same sample, a limit on the mass difference between the physical B0s states has been set: ΔmB0s > 7.4 ps-1 at the 95% C.L. with a corresponding sensitivity equal to 8.1 ps-1.

Start page

555

End page

578

Volume

16

Issue

4

Language

English

OCDE Knowledge area

Física de partículas, Campos de la Física Física nuclear

DOI

10.1007/s100520000415

Scopus EID

2-s2.0-0010450209

Source

European Physical Journal C

ISSN of the container

14346044

Sources of information: Directorio de Producción Científica Scopus

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