• Open Access

First observations of B¯s0D+D, Ds+D and D0D¯0 decays

R. Aaij et al. (LHCb Collaboration)
Phys. Rev. D 87, 092007 – Published 21 May 2013

Abstract

First observations and measurements of the branching fractions of the B¯s0D+D, B¯s0Ds+D and B¯s0D0D¯0 decays are presented using 1.0fb1 of data collected by the LHCb experiment. These branching fractions are normalized to those of B¯0D+D, B0DDs+ and BD0Ds, respectively. An excess of events consistent with the decay B¯0D0D¯0 is also seen, and its branching fraction is measured relative to that of BD0Ds. Improved measurements of the branching fractions B(B¯s0Ds+Ds) and B(BD0Ds) are reported, each relative to B(B0DDs+). The ratios of branching fractions are B(B¯s0D+D)B(B¯0D+D)=1.08±0.20±0.10, B(B¯s0Ds+D)B(B0DDs+)=0.050±0.008±0.004, B(B¯s0D0D¯0)B(BD0Ds)=0.019±0.003±0.003, B(B¯0D0D¯0)B(BD0Ds)<0.0024 at 90% CL, B(B¯s0Ds+Ds)B(B0DDs+)=0.56±0.03±0.04, B(BD0Ds)B(B0DDs+)=1.22±0.02±0.07, where the uncertainties are statistical and systematic, respectively.

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  • Received 23 February 2013

DOI:https://doi.org/10.1103/PhysRevD.87.092007

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

© 2013 CERN, for the LHCb Collaboration

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Vol. 87, Iss. 9 — 1 May 2013

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