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Determination of f(s)/f(d) for 7 TeV pp collisions and measurement of the B0→D-K+ branching fraction.

Author
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Abstract
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The relative abundance of the three decay modes B(0)→D(-)K(+), B(0)→D(-)π(+), and B(s)(0)→D(s)(-)π(+) 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(0)→D(-)K(+) is found to be B(B(0)→D(-)K(+)) = (2.01 ± 0.18(stat) ± 0.14(syst)) × 10(-4). The ratio of fragmentation fractions f(s)/f(d) is determined through the relative abundance of B(s)(0)→D(s)(-)π(+) to B(0)→D(-)K(+) and B(0)→D(-)π(+), leading to f(s)/f(d) = 0.253 ± 0.017 ± 0.017 ± 0.020, where the uncertainties are statistical, systematic, and theoretical, respectively.

Year of Publication
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2011
Journal
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Physical review letters
Volume
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107
Issue
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21
Number of Pages
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211801
Date Published
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2011 Nov 18
ISSN Number
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0031-9007
URL
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http://link.aps.org/abstract/PRL/v107/p211801
Short Title
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Phys Rev Lett
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