Publication
Title
First observation of $\overline{B}_{s}^{0}\rightarrow D_{s}^{\pm}K^{\mp}$ and measurement of the ratio of branching fractions $\mathcal{B}(\overline{B}_{s}^{0}\rightarrow D_{s}^{\pm}K^{\mp})/\mathcal{B}(\overline{B}_{s}^{0}\rightarrow D_{s}^{+}\pi^{-})$
Author
Institution/Organisation
CDF Collaboration
Abstract
 A combined mass and particle identification fit is used to make the first observation of the decay B̅ s0→Ds±K∓ and measure the branching fraction of B̅ s0→Ds±K∓ relative to B̅ s0→Ds+π-. This analysis uses 1.2  fb-1 integrated luminosity of pp̅ collisions at √s=1.96  TeV collected with the CDF II detector at the Fermilab Tevatron collider. We observe a B̅ s0→Ds±K∓ signal with a statistical significance of 8.1σ and measure B(B̅ s0→Ds±K∓)/B(B̅ s0→Ds+π-)=0.097±0.018(stat)±0.009(syst).
Language
English
Source (journal)
Physical review letters. - New York, N.Y.
Publication
New York, N.Y. : 2009
ISSN
0031-9007
Volume/pages
103:19(2009), p. 191802,1-191802,7
ISI
000271568200007
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address