Mending $\rho\pi\pi$ vertex through the $\pi a_1$ diagonalization

The problem of the strong momentum dependence of the $ρ π π$ -vertex in the extended Nambu – Jona-Lasinio model is solved by an appropriate choice of fields for spin-1 particles. A corresponding phenomenological Lagrangian is derived. As straightforward applications, the decay widths of $ρ \to π π$ , and $a_{1} \to ρ π$ transitions are calculated and compared with known empirical data and previous theoretical estimates.

Mending $ρ π π$ vertex through the $π a_{1}$ diagonalization

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Mending $ρ π π$ vertex through the $π a_{1}$ diagonalization

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Mending ρππρππ vertex through the πa1πa1​ diagonalization

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Mending ρππρππ vertex through the πa1πa1​ diagonalization

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Mending $ρ π π$ vertex through the $π a_{1}$ diagonalization

讲解博客

AI智能校验

Mending $ρ π π$ vertex through the $π a_{1}$ diagonalization

讲解博客

AI智能校验