We propose a parametrization for intepreting some of the presently available
data of the B±→K±ppˉ decay, in particular those by LHCb
and Belle collaborations. The model is inspired by the well-known current and
transition contributions, usually assumed in this kind of decay. However, in
the light of considerations about the dominant graphs and about final state
interactions, we modify some parameters of the model, determining them by means
of a best fit to data. We show the results, which we discuss in some detail.
Moreover we give some predictions on other observables relative to the decays.Comment: 19 pages, 5 figures in EPJC 201