First observations of the Cabibbo-suppressed decays (B) over bar (0) -> D+K-pi(+)pi(-) and B- -> (DK-)-K-0 pi(+)pi(-) are reported using 35 pb(-1) of data collected with the LHCb detector. Their branching fractions are measured with respect to the corresponding Cabibbo-favored decays, from which we obtain B((B) over bar (0) -> D+K-pi(+)pi(-))/B((B) over bar (0) -> D+pi(-)pi(+)pi(-) = (5.9 +/- 1.1 +/- 0.5) x 10(-2) and B(B- -> (DK-)-K-0 pi(+)pi(-))/B(B- -> D-0 pi(-)pi(+)pi(-)) = (0.9 +/- 1.3 +/- 0.9) x 10(-2), where the uncertainties are statistical and systematic, respectively. The B- -> (DK-)-K-0 pi(+)pi(-) decay is particularly interesting, as it can be used in a similar way to B- -> (DK-)-K-0 to measure the Cabibbo-Kobayashi-Maskawa phase gamma.

First Observation of the Decays B¯0 → D+K-π+π- and B- → D0K-π+π- / R., A., C. A., B., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., G., A., P. A., C., J. A., A., S., A., Y., A., J., A., R. B., A., O. A., G., F., A., L., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 108:16(2012), pp. 161801-1-161801-8. [10.1103/PhysRevLett.108.161801]

First Observation of the Decays B¯0 → D+K-π+π- and B- → D0K-π+π-

BIZZETI, Andrea;
2012

Abstract

First observations of the Cabibbo-suppressed decays (B) over bar (0) -> D+K-pi(+)pi(-) and B- -> (DK-)-K-0 pi(+)pi(-) are reported using 35 pb(-1) of data collected with the LHCb detector. Their branching fractions are measured with respect to the corresponding Cabibbo-favored decays, from which we obtain B((B) over bar (0) -> D+K-pi(+)pi(-))/B((B) over bar (0) -> D+pi(-)pi(+)pi(-) = (5.9 +/- 1.1 +/- 0.5) x 10(-2) and B(B- -> (DK-)-K-0 pi(+)pi(-))/B(B- -> D-0 pi(-)pi(+)pi(-)) = (0.9 +/- 1.3 +/- 0.9) x 10(-2), where the uncertainties are statistical and systematic, respectively. The B- -> (DK-)-K-0 pi(+)pi(-) decay is particularly interesting, as it can be used in a similar way to B- -> (DK-)-K-0 to measure the Cabibbo-Kobayashi-Maskawa phase gamma.
2012
108
16
161801-1
161801-8
First Observation of the Decays B¯0 → D+K-π+π- and B- → D0K-π+π- / R., A., C. A., B., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., G., A., P. A., C., J. A., A., S., A., Y., A., J., A., R. B., A., O. A., G., F., A., L., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 108:16(2012), pp. 161801-1-161801-8. [10.1103/PhysRevLett.108.161801]
R., Aaij; C. A., Beteta; B., Adeva; M., Adinolfi; C., Adrover; A., Affolder; Z., Ajaltouni; J., Albrecht; F., Alessio; M., Alexander; G., Alkhazov; P....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/743700
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