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In this article, we study the $B \to K^*_2(1430)$, $a_2(1320)$, $f_2(1270)$form-factors with the light-cone QCD sum rules, where the $B$-meson light-conedistribution amplitudes are used. In calculations, we observe that theline-shapes of the $B$-meson light-cone distribution amplitude $\phi_+(\omega)$have significant impacts on the values of the form-factors, and expect toobtain severe constraints on the parameters of the $B$-meson light-conedistribution amplitudes from the experimental data in the future.

Analysis of the $B \to K^*_2(1430), a_2(1320), f_2(1270)$ form-factors with light-cone QCD sum rules