Reanalysis of the (0⁺,1⁺) States B_s0 and B_s1 with QCD Sum Rules

We calculate the masses and decay constants of the P-wave strange-bottomed mesons B_s0 and B_s1 with the QCD sum rules, and observe that the central values of the masses B_s0 and B_s1 are smaller than the corresponding BK and B*K thresholds respectively, the strong decays B_s0→BK and B_s1B*K are kinematically forbidden. They can decay through the isospin violation processes B_s0→B_sη→wB_sπ⁰ and B_s1→ B_sη→ B_s*π⁰. The bottomed mesons B_s0 and B_s1, just like their charmed cousins D_s0(2317) and D_s1(2460), may be very narrow.