Speaker
Description
The recently developed $B$-mesogenesis scenario predicts the decays of $B$ mesons into a baryon and a hypothetical dark antibaryon in the final state. In this work, we suggest to apply QCD light-cone sum rules to estimate the partial width of the simplest exclusive decay mode $B^+\to p \Psi$, where $\Psi$ is a dark antibaryon. We consider two sample models of $B$-mesogenesis and identify the three-quark effective operators relevant for these decays. Furthermore, we calculate the $B\to p$ hadronic matrix elements of these operators applying light-cone sum rules with nucleon light-cone distribution amplitudes in the leading order and to leading twist accuracy. Our main result is the partial width of $B^+\to p \Psi$ decay as a function of the $\Psi$ mass and the four-fermion quark-$\Psi$ coupling.