TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
PY  - 2021
DA  - 2021//
TI  - Observation of the suppressed Lambda(0)(b) -> DpK(-) decay with D -> K+ pi(-) and measurement of its CP asymmetry
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 112008
EP  - 14pp
VL  - 104
IS  - 11
PB  - Amer Physical Soc
AB  - A study of A(b)(0) baryon decays to the DpK(-) final state is presented based on a proton-proton collision data sample corresponding to an integrated luminosity of 9 fb(-1) collected with the LHCb detector. Two A(b)(0) decays are considered, A(b)(0) -> DpK(-) with D -> K-pi(+) and D -> K+pi(-), where D represents a superposition of D-0 and over bar D-0 states. The latter process is expected to be suppressed relative to the former, and is observed for the first time. The ratio of branching fractions of the two decays is measured, and the CP asymmetry of the suppressed mode, which is sensitive to the Cabibbo-Kobayashi-Maskawa angle gamma, is also reported.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2109.02621
UR  - https://doi.org/10.1103/PhysRevD.104.112008
DO  - 10.1103/PhysRevD.104.112008
LA  - English
N1  - WOS:000746362200003
ID  - LHCbCollaborationAaij_etal2021
ER  -