Search for the Decay $B_s^0\to {\eta }^{\prime }\eta$

Belle Collaboration, A. Abdesselam, I. Adachi +459

In the Standard Model (SM) charmless hadronic decays $B_s^0\to {\eta }^{\prime }\eta$ proceed via tree-level $b\to u$ and penguin $b\to s$ transitions. Penguin transitions are sensit…