First observations of B̄s0→D+, Ds+ and D0D0 decays
Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN: 1550-7998, Vol: 87, Issue: 9
2013
- 17Citations
- 59Captures
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Article Description
First observations and measurements of the branching fractions of the B̄s0→DD, B̄s0→Ds+D and B̄s0→D0D0 decays are presented using 1.0 fb 1 of data collected by the LHCb experiment. These branching fractions are normalized to those of B0→D D, B0→DDs+ and B→D0Ds- , respectively. An excess of events consistent with the decay B 0→D0D0 is also seen, and its branching fraction is measured relative to that of B→D0Ds-. Improved measurements of the branching fractions B(B̄s0→Ds+Ds-) and B(B →D0Ds-) are reported, each relative to B(B0→D Ds+). The ratios of branching fractions are B(B̄s0→D D)B(B0→DD )=1.08±0.20±0.10, B(B̄s0→Ds+D )B(B0→DDs+)=0.050±0.008±0.004, B(B̄s0→D0D0)B(B→D0Ds-)=0. 019±0.003±0.003, B(B0→D0D 0)B(B→D0Ds-)<0.0024 at 90% CL, B(B̄s0→Ds+Ds-)B(B0→DDs+)=0.56±0.03±0. 04, B(B→D0Ds-)B(B0→DDs+)=1.22±0. 02±0.07, where the uncertainties are statistical and systematic, respectively. © 2013 CERN.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84878544050&origin=inward; http://dx.doi.org/10.1103/physrevd.87.092007; https://link.aps.org/doi/10.1103/PhysRevD.87.092007; http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.87.092007/fulltext; http://link.aps.org/accepted/10.1103/PhysRevD.87.092007; http://link.aps.org/article/10.1103/PhysRevD.87.092007
American Physical Society (APS)
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