2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185417We propose a new estimate of the process $B \to (ρ, ω)+ γ$ by using the light-cone QCD sum rule. The aim is to choose the chiral quark current operators in order to eliminate the uncertainty arising from the chiral-even operators in the correlator. In the case of neglecting the corrections from $ρ$-meson mass, the sum rules for form factors are obtained, which are valid to the twist-three accuracy. The resulting branching ratios are consistent with the experimental data.Latex, 12 pages including 3 ps figuresHigh Energy Physics - Phenomenologytext