Abstract
We report a study of the suppressed and favored decays, where the neutral meson is detected through its decays to the and -even and final states. The measurement is carried out using a proton-proton collision data sample collected by the LHCb experiment, corresponding to an integrated luminosity of . We observe the first significant signals in the -even final states of the meson for both the suppressed and favored modes, as well as in the doubly Cabibbo suppressed final state of the decay. Evidence for the suppressed decay , with , is also presented. From the observed yields in the , and their charge conjugate decay modes, the most probable value of the weak phase corresponds to . This is one of the most precise single-measurement determinations of to date.
2 More- Received 27 May 2015
DOI:https://doi.org/10.1103/PhysRevD.92.112005
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© 2015 CERN, for the LHCb Collaboration