First observation of the decay Bbar0s->D0K*0 and a measurement of the ratio of branching fractions Br(Bbar0s->D0K*0) / Br(Bbar0s->D0 rho0)
Author
Calvo Gómez, Míriam
Camboni, Alessandro
Vilasís Cardona, Xavier
LHCb Collaboration - CERN
Other authors
Universitat Ramon Llull. La Salle
CERN
Publication date
2011-11-30Abstract
The first observation of the decay B0s
→D0K∗0 using pp data collected by the LHCb detector at a centreof-
mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb−1, is reported. A signal
of 34.4 ± 6.8 events is obtained and the absence of signal is rejected with a statistical significance of
more than nine standard deviations. The B0s
→ D0K∗0 branching fraction is measured relative to that of
B0→D0ρ0:
B(B0s
→D0 K∗0)
B(B0→D0ρ0)
= 1.48±0.34±0.15±0.12, where the first uncertainty is statistical, the second
systematic and the third is due to the uncertainty on the ratio of the B0 and B0s
hadronisation fractions
Document Type
Article
Published version
Language
English
Subject (CDU)
539 - Physical nature of matter
Keywords
Gran col·lisionador d'hadrons (França i Suïssa)
Partícules (Física nuclear)
Pages
8 p.
Publisher
Elsevier
Is part of
Physics Letters B , 2011, Vol. 706, No. 1 (Novembre)
This item appears in the following Collection(s)
Rights
© CERN
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/
