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

Determination of f(s)/f(d) for 7 TeV pp Collisions and Measurement of the B-0 -> D-K+ Branching Fraction

BALDINI, Wander;BOZZI, Concezio;FALABELLA, Antonio;PETRELLA, Antonio;SAVRIE', Mauro;
2011

Abstract

The relative abundance of the three decay modes B-0 -> D-K+, B-0 -> D-pi(+), and B-s(0) -> 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-0 -> D-K+ is found to be B(B-0 -> D-K+) = (2.01 +/- 0.18(stat) +/- 0.14(syst)) x 10(-4). The ratio of fragmentation fractions f(s)/f(d) is determined through the relative abundance of B-s(0) -> D-s(-)pi(+) to B-0 -> D-K+ and B-0 -> D-pi(+), leading to f(s)/f(d) = 0.253 +/- 0.017 +/- 0.017 +/- 0.020, where the uncertainties are statistical, systematic, and theoretical, respectively.
2011
R., Aaij; B., Adeva; M., Adinolfi; C., Adrover; A., Affolder; Z., Ajaltouni; J., Albrecht; F., Alessio; M., Alexander; G., Alkhazov; P. A., Cartelle; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1891137
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