arXiv subjects
Publications and source records attributed to B. N. Kuranov.
The $ϕ\to ωπ^0$ decay is studied using the method of phenomenological chiral Lagrangians. It is shown that the weak hadronic current between $ω$-and $π^0$ -mesons is equal to zero and this decay channel proceeds only due to the $ϕ-ρ$ mixing diagram.
The τ\to (a_1 h)^- ν_τ decays of the τ-lepton are studied using the method of phenomenological chiral Lagrangians. The expression of weak hadronic currents between pseudoscalar and axial-vector meson states is obtained. Calculated partial widths for these decays are compared with the available experimental data.
The τ\to ω,ϕπ^- ν_τdecays of the τlepton are studied using the method of phenomenological SU(3) * SU(3) chiral Lagrangians. It is shown that the obtained value for the τ\to ϕπν_τdecay probability is very sensitive to deviations from the mixing angle. Calculated partial widths for these decays are compared with the available experimental and theoretical data.
The relativistic quark potential model (QPM) is developed for describingvector mesons and their leptonic decays. The new representation Salpeter equation for vector mesons is proposed. Studying the $τ\toρν$ decay theexpression for $ρ$-meson leptonic decay constant $f_ρ$ isobtained. It is shown that quark model describes on a satisfactory level both theconstant $f_ρ$ and the masses of other charged vector mesons. Thevalues for the leptonic decay constants of $K^{*},D^{*},D^{*}_s,B^{*},B^{*}_c$ mesons are predicted.