B-meson decay into a proton and dark antibaryon from QCD light-cone sum rules

The recently developed B-Mesogenesis scenario predicts decays of B mesons into a baryon and hypothetical dark antibaryon & UPsi;. We suggest a method to calculate the amplitude of the simplest exclusive decay mode B+ & RARR; p & UPsi;. Considering two models of B-Mesogenesis, we obtain the B & RARR; p hadronic matrix elements by applying QCD light-cone sum rules with the proton light-cone distribution amplitudes. We estimate the B+ & RARR; p & UPsi; decay width as a function of the mass and effective coupling of the dark antibaryon. (c) 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).