Decays of $ au ightarrow ho(770) ( ho'(1450)) u_ au$ and $ au ightarrow K^{*}(892) (K^{*'}(1410)) u_ au$ in the extended Nambu - Jona- Lasinio model

摘要

In the extended Nambu - Jona - Lasinio model the decay widths $\tau\rightarrow \rho(770) (\rho'(1450)) \nu_\tau$ and $\tau \rightarrow K^{*}(892)(K^{*'}(1410)) \nu_\tau$ are studied in the quark one -loop approximation. Ourestimations of the decay widths $\tau \rightarrow K^{*}(892) (K^{*'}(1410))\nu_\tau$ are in satisfactory agreement with experimantal data. In the paper,the decay widths $\tau \rightarrow \rho(770) (\rho'(1450)) \nu_\tau$ are alsocalculated.