Precision calculations of $B\to K^{\ast }$ form factors from SCET sum rules beyond leading-power contributions

Jing Gao, Ulf-G. Meißner, Yue-Long Shen +1

We construct light-cone sum rules (LCSR) for the $B\to K^{\ast }$ form factors in the large recoil region using vacuum-to-$B$-meson correlation functions, and systematically calculate su…