Constraints on the mass of the dark antibaryon using $B_d\rightarrow ÎÏ_{DS}$ channel in light cone QCD

M. A. Abri; N. Hajirasouliha; K. Azizi

paper

Constraints on the mass of the dark antibaryon using $B_{d} \to I^ I ¨ _{D S}$ channel in light cone QCD

arXiv:2605.13701

Abstract

According to the $B$ -mesogenesis framework, the baryon asymmetry of the Universe and dark matter can be simultaneously generated through CP-violating $B$ -meson oscillations. In this mechanism, $B$ -mesons decay into a Standard Model baryon and a dark-sector antibaryon, denoted by $I ¨ _{D S}$ . Within this scenario, we investigate the allowed mass window for $I ¨ _{D S}$ using Light Cone Sum Rules (LCSR) for $B_{d} \to I^ I ¨ _{D S}$ decay. To include nonperturbative effects, we employ contributions up to twist-6 of the $I^$ distribution amplitudes in the operator product expansion (OPE). We derive the branching fraction as a function of dark antibaryon mass and, by comparing with the experimental limits by the BaBar and Belle collaborations, determine the mass ranges of $I ¨ _{D S}$ consistent with the $B$ -mesogenesis mechanism.

19 Pages, 8 Figures and 2 Tables

Constraints on the mass of the dark antibaryon using Bd​→I^I¨DS​ channel in light cone QCD

Abstract

Constraints on the mass of the dark antibaryon using $B_{d} \to I^ I ¨ _{D S}$ channel in light cone QCD