Title
First observation of the decay <tex>$B_{s}^{0}\rightarrow D_{s}^{-}D_{s}^{+}$</tex> and measurement of its branching ratio First observation of the decay <tex>$B_{s}^{0}\rightarrow D_{s}^{-}D_{s}^{+}$</tex> and measurement of its branching ratio
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Physical review letters. - New York, N.Y.
Volume/pages
100(2008) :2 , p. 021803,1-021803,7
ISSN
0031-9007
ISI
000252471200019
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We report the observation of the exclusive decay Bs0→Ds-Ds+ at the 7.5 standard deviation level using 355  pb-1 of data collected by the CDF II detector in pp&#773; collisions at √s=1.96   TeV at the Fermilab Tevatron. We measure the relative branching ratio B(Bs0→Ds-Ds+)/B(B0→D-Ds+)=1.44-0.44+0.48. Using the world average value for B(B0→D-Ds+), we find B(Bs0→Ds-Ds+)=(9.4-4.2+4.4)×10-3. This provides a lower bound ΔΓsCP/Γs≥2B(Bs0→Ds-Ds+)>1.2×10-2 at 95% C.L.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/8b6dac/6ad92244.pdf
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