A STUDY OF (B)OVER-BAR-(0)-]D-ASTERISK-(NU)OVER-BAR AND B(0)(B)OVER-BAR-(0) MIXING USING PARTIAL D-ASTERISK+ RECONSTRUCTION(L)

Authors
ALBRECHT H EHRLICHMANN H HAMACHER T HOFMANN RP KIRCHHOFF T NAU A NOWAK S SCHRODER H SCHULZ HD WALTER M WURTH R HAST C KAPITZA H KOLANOSKI H KOSCHE A LANGE A LINDNER A MANKEL R SCHIEBER M SIEGMUND T SPAAN B THURN H TOPFER D WEGENER D ECKSTEIN P WALDI R PAULINI M REIM K WEGENER H ECKMANN R MUNDT R OEST T REINER R SCHMIDTPARZEFALL W STIEWE J WERNER S EHRET K HOFMANN W HUPPER A KHAN S KNOPFLE KT SEEGER M SPENGLER J BRITTON DI CHARLESWORTH CEK EDWARDS KW HYATT ERF KRIEGER P MACFARLANE DB PATEL PM PRENTICE JD SAULL PRB TZAMARIUDAKI K VANDEWATER RG YOON TS RESSING D SCHMIDTLER M SCHNEIDER M SCHUBERT KR WESELER S KERNEL G KRIZAN P KRIZNIC E PODOBNIK T ZIVKO T BALAGURA V BELYAEV I CHECHELNITSKY S DANILOV M DROUTSKOY A GERSHTEIN Y GOLUTVIN A KOROLKO I KOSTINA G LITVINTSEV D LUBIMOV V PAKHLOV P SEMENOV S SNIZHKO A TICHOMIROV I ZAITSEV Y
Citation
H. Albrecht et al., A STUDY OF (B)OVER-BAR-(0)-]D-ASTERISK-(NU)OVER-BAR AND B(0)(B)OVER-BAR-(0) MIXING USING PARTIAL D-ASTERISK+ RECONSTRUCTION(L), Physics letters. Section B, 324(2), 1994, pp. 249-254
Citations number
16
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
324
Issue
2
Year of publication
1994
Pages
249 - 254
Database
ISI
SICI code
0370-2693(1994)324:2<249:ASO(AB>2.0.ZU;2-P
Abstract
Using the ARGUS detector at the e+e- storage ring DORIS II at DESY, we have studied the decay B0BAR --> D+l-nuBAR by exploiting a partial D + reconstruction technique. The branching ratio for this mode was the reby determined to be (4.5 +/- 0.3 +/- 0.4)%. Using the corresponding sample of tagged B0 mesons, we measured the B0B0BAR mixing parameter t o be r(d) = 0.194 +/- 0.062 +/- 0.054, a result only weakly dependent upon the ratio of semileptonic widths for and production rates of B0 a nd B+ mesons. We have also determined the branching ratio Br(B0BAR --> X l-nuBAR) to be (9.3 +/- 1.1 +/- 1.5)%. By comparing the results for full and partial D+ reconstruction we found the absolute branching r atios for D0 --> K-pi+ and D0 --> K-pi+pi+pi- to be (4.5 +/- 0.6 +/- 0 .4)% and (7.9 +/- 1.5 +/- 0.9)%, respectively.