ausblenden:
Schlagwörter:
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MPINP:
LHCb - Abteilung Hinton
Zusammenfassung:
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.