The decays $\rho^{-}\to\eta\pi^{-}$ and $\tau^{-}\to\eta(\eta')\pi^{-}\nu$ in the NJL model

The widths of the decays $ρ^{-} \to η π^{-}$ and $τ^{-} \to η (η^{'}) π^{-} ν$ are calculated in the framework of the NJL model. It is shown that these decays are defined by the $u$ and $d$ quark mass difference. It leads to the suppression of these decays in comparison with the main decay modes. In the process $ρ^{-} \to η π^{-}$ the intermediate scalar $a_{0}^{-}$ state is taken into account. For the $τ$ decays the intermediate states with $a_{0}^{-}$ , $ρ^{-} (770)$ and $ρ^{-} (1450)$ mesons are used. Our estimates are compared with the results obtained in other works.

The decays $ρ^{-} \to η π^{-}$ and $τ^{-} \to η (η^{'}) π^{-} ν$ in the NJL model

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The decays $ρ^{-} \to η π^{-}$ and $τ^{-} \to η (η^{'}) π^{-} ν$ in the NJL model

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The decays ρ−→ηπ−ρ−→ηπ− and τ−→η(η′)π−ντ−→η(η′)π−ν in the NJL model

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The decays ρ−→ηπ−ρ−→ηπ− and τ−→η(η′)π−ντ−→η(η′)π−ν in the NJL model

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The decays $ρ^{-} \to η π^{-}$ and $τ^{-} \to η (η^{'}) π^{-} ν$ in the NJL model

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AI智能校验

The decays $ρ^{-} \to η π^{-}$ and $τ^{-} \to η (η^{'}) π^{-} ν$ in the NJL model

讲解博客

AI智能校验