Radiative generation of chiral vector operators in $b\to s\nu \bar{\nu }$ transition

Xin-Shuai Yan, Wen-Feng Liu, Qin Chang +1

The recent Belle II evidence for $B^{+}\to K^{+}\nu \bar{\nu }$, combined with a suppressed branching fraction ratio $R\equiv Br(B^0\to K^{\ast 0}\nu \bar{\nu })/Br(B^{+}\to K^{+}\nu \bar{\nu })$, necessitat…