First observation of the decays B(0) ? D(+)K(-)p(+)p(-) and B(-) ? D(0)K(-)p(+)p(-).
First observation of the decays B(0) ? D(+)K(-)p(+)p(-) and B(-) ? D(0)K(-)p(+)p(-).
复制标题
第一次观察到衰变 B(0) ?
DOI:
10.1103/physrevlett.108.161801
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发表时间:
2012
影响因子:
8.6
通讯作者:
Aaij R
中科院分区:
文献类型:
--
作者:
Aaij R
First observations of the Cabibbo-suppressed decaysandare reported usingof data collected with the LHCb detector. Their branching fractions are measured with respect to the corresponding Cabibbo-favored decays, from which we obtain <?format ?>B(B¯0→D+K-π+π-)/B(B¯0→D+π-π+π-)=(5.9±1.1±0.5)×10-2 and <?format ?>B(B-→D0K-π+π-)/B(B-→D0π-π+π-)=(9.4±1.3±0.9)×10-2, where the uncertainties are statistical and systematic, respectively. Thedecay is particularly interesting, as it can be used in a similar way toto measure the Cabibbo-Kobayashi-Maskawa phase.