On the smallness of charm loop effects in $B\to K^{(\ast )}\ell \ell$ at low $q^2$: light meson Distribution Amplitude analysis

Namit Mahajan, Dayanand Mishra

The non-local effects originating from the charm quark loops at dilepton invariant masses smaller than the charmonium threshold in $B\to K\ell \ell$ are evaluated with light meson…