$$B_{(s)}$$ to light tensor meson form factors via LCSR in HQEFT with applications to semileptonic decays

Abstract In the present work, form factors of $$B_{(s)}$$ B ( s ) to light P-wave tensor mesons ( $$a_2(1320)$$ a 2 1320 , $$K^*_2(1430)$$ K ∗ 1430 $$f_2(1270)$$ f 1270 $$f^\prime _2(1525)$$ ′ 1525 ) are calculated via cone sum rules (LCSR) in framework heavy quark effective field theory (HQEFT). Firstly, expressions terms distribution amplitudes (DAs) derived LCSR at leading order expansion. It is found that penguin type can be obtained directly from corresponding semileptonic ones, which similar case S-wave mesons. Considering meson DAs twist-3, we give numerical results systematically. As applications, investigate branching ratios, longitudinal polarization fractions and forward-backward asymmetries relevant decays induced by charged current flavor changing neutral (FCNC) separately. Our may tested more precise experiments future.