Determination of f(s)/f(d) for 7 TeV pp collisions and measurement of the B0→D-K+ branching fraction.
| Author | |
|---|---|
| Abstract |
:
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
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| Journal |
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Physical review letters
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| Volume |
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107
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| Issue |
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21
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| Number of Pages |
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211801
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| Date Published |
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2011 Nov 18
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| ISSN Number |
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0031-9007
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| URL |
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http://link.aps.org/abstract/PRL/v107/p211801
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| Short Title |
:
Phys Rev Lett
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| Download citation |
