Higher twist corrections to B -meson decays into a proton and dark antibaryon from QCD light-cone sum rules

The B-mesogenesis framework anticipates decays of B mesons into a dark antibaryon Ψ and various Standard Model baryons. Here, we focus on the exclusive decay process B→pΨ observed as a proton and missing energy in the final state and determine the decay width by employing the QCD light-cone sum rule framework. We include all contributions up to twist six to the nucleon distribution amplitudes in order to parametrize the nonperturbative effects in the operator product expansion. We obtain the decay width and branching fraction with respect to the mass m_Ψ of the dark antibaryon Ψ.