Speaker
Description
We search for the SM decays $\bar{B}^{0} \to \bar{\Lambda}^{0} \Omega_{c}^{0}$ and $\bar{B}^{0} \to \bar{\Lambda}^{0} \Omega_{c}(2770)^{0}$, and BSM decays $\bar{B}^{0} \to \bar{\Lambda}^{0}\bar{\Omega}_{c}^{0}$ and $\bar{B}^{0} \to \bar{\Lambda}^{0}\bar{\Omega}_{c}(2770)^{0}$ using the full Belle data sample of 711~${\rm fb^{-1}}$ that contains 772 million $B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at KEKB asymmetric-energy electron-positron collider. The former two non-factorizable $W$-emission decays are suppressed in the Standard Model, could be used to understand the predictions of QCD-inspired models and, when discovered, would become a useful tool to search for baryon-antibaryon oscillations, therefore helping to explain matter-antimatter asymmetry. The observation of the latter two final states would either indicate an SM decay followed by baryon-antibaryon oscillations or be the result of a direct BSM transition.
