A Proposal to the ‘12 vs. 32 Puzzle’

We reconsider the semileptonic decays of B→D1(′)lν¯l. The previous theoretical calculations predict a significantly smaller rate for decay B to D1′(Jl=12) compared with that D1(Jl=32), which is not consistent current experimental data. This conflict known as so-called ‘12 vs. 32 puzzle’. In this work, we propose simple scheme fix problem, where suppose strong eigenstates D1(′) do coincide eigenstate weak interaction, since no results show and interactions have share same eigenstates. Within framework tentative scheme, meson first weakly Dα(β) then latter are detected by products D*π. there exist two new particles JP=1+, were previously identified. good performance in describing data may hint at symmetry Bq 1+ heavy–light mesons. To test proposed here, suggest an experiment detect difference invariant mass spectra D1 reconstructed from products.