Remarks on the recently observed B decays into fₓ(1300) K and J/ψKₓ*(1430)

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In light of the recent experimental results on decays B+ → fₓ(1300) K+ and B±⁽⁰⁾ → J/ψKₓ*±⁽⁰⁾(1430) from Belle, we study the B → P(V) S type decays, B±⁽⁰⁾ → f₀(1370) K±⁽⁰⁾ and B±⁽⁰⁾ → J/ψK₀*±⁽⁰⁾(1430), in comparison with the B → P(V) T type decays, B±⁽⁰⁾ → f₂(1270) K±⁽⁰⁾ and B±⁽⁰⁾ → J/ψK₂*±⁽⁰⁾(1430). We calculate the BRs for these decays by using the form factors obtained in the ISGW2 model [the improved version of the original Isgur-Scora-Grinstein-Wise (ISGW) model], as well as the ISGW model for comparison. The ratios of B(B → P(V)S) / B(B → P(V)T) are also presented.