TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2016
DA  - 2016//
TI  - First observation of the rare B+ -> D+K+pi(-) decay
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 051101
EP  - 11pp
VL  - 93
IS  - 5
PB  - Amer Physical Soc
AB  - The B+ -> D+K+pi(-) decay is observed in a data sample corresponding to 3.0 fb(-1) of pp collision data recorded by the LHCb experiment during 2011 and 2012. The signal significance is 8 sigma and the branching fraction is measured to be B(B+ -> D+K+pi(-)) = (5.31 +/- 0.90 +/- 0.48 +/- 0.35) x 10(-6), where the uncertainties are statistical, systematic and due to the normalization mode B+ -> D-K+pi(+), respectively. The Dalitz plot appears to be dominated by broad structures. Angular distributions are exploited to search for quasi-two-body contributions from B+ -> D*(2)(2460)K-0(+) and B+ -> (D+K*)(892)(0) decays. No significant signals are observed and upper limits are set on their branching fractions.
SN  - 2470-0010
UR  - https://arxiv.org/abs/1512.02494
UR  - https://doi.org/10.1103/PhysRevD.93.051101
DO  - 10.1103/PhysRevD.93.051101
LA  - English
N1  - WOS:000371413800001
ID  - LHCbCollaborationAaij_etal2016
ER  -