Home > Research > Publications & Outputs > A measurement of semileptonic B decaysto narrow...

Research

Links

Text available via DOI:

View graph of relations

A measurement of semileptonic B decaysto narrow orbitally-excited charm mesons

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Published
  • OPAL Collaboration
Close
More...
<mark>Journal publication date</mark>10/2003
<mark>Journal</mark>European Physical Journal C: Particles and Fields
Issue number4
Volume30
Number of pages9
Pages (from-to)467-475
Publication StatusPublished
<mark>Original language</mark>English

Abstract

The decay chain b→B¯→D∗∗0ℓ−ν¯X,D∗∗0→D∗+π−,D∗+→D0π+,D0→(KπorK3π) is identified in a sample of 3.9 million hadronic Z decays collected with the OPAL detector at LEP. The branching ratio BR (b→B¯)×BR(B¯→D01ℓ−ν¯X)×BR(D01→D∗+π−) is measured to be (2.64±0.79(stat)±0.39(syst))×10−3 for the JP=1+ (D01) state. For decays into the JP=2+ (D2*0) state, an upper limit of 1.4 x 10-3 is placed on the branching ratio at the 95% confidence level.