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Determination of f_s/f_d for 7 TeV pp collisions and a measurement of the branching fraction of the decay Bd->D-K+

Abstract:

The relative abundance of the three decay modes $B_d \to D^- K^+$, $B_d \to D^- \pi^+$ and $B_s \to D_s^- \pi^+$ produced in 7 TeV $pp$ collisions at the LHC is determined from data corresponding to an integrated luminosity of 35 pb$^{-1}$. The branching fraction of $B_d \to D^- K^+$ is found to be $\cal B (B_d \to D^- K^+) = (2.01 \pm 0.18^{\textrm{stat}} \pm 0.14^{\textrm{syst}})\times 10^{-4}$. The ratio of fragmentation fractions \fsfdt is determined through the relative abundance of $B_s...

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Publication status:
Published

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Journal:
Physical Review Letters
Volume:
107
Issue:
21
Pages:
21
Publication date:
2011-06-22
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:b40fdd00-f509-4456-97d0-e9a6034e934f
Source identifiers:
220975
Local pid:
pubs:220975
Keywords:

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