The decays $\tau \to (K,K(1460)){\nu }_{\tau }$ and the value of the weak decay coefficients $F_K$ and $F_{K^{{}^{\prime }}}$ in the extended NJL model

Abstract

In the extended NJL model, the decay widths of $\tau \to (K,K(1460)){\nu }_{\tau }$, $(K,K(1460))\to \mu {\nu }_{\mu }$ are calculated. The contributions from intermediate axial-vector mesons $K_1(1270)$, $K_1(1400)$ and the first radially excited state $K_1(1650)$ are taken into account. Estimates for the weak decay coefficients $F_K$ and $F_{K^{{}^{\prime }}}$ are given. Predictions are made for the width of $\tau \to K(1460){\nu }_{\tau }$ decay and $F_{K^{{}^{\prime }}}$ constant.

arXiv comment8 pages, 4 figures

References in corpus (10)

• Domain wall QCD with physical quark masses
• Charmed and light pseudoscalar meson decay constants from four-flavor lattice QCD with physical light quarks
• Leptonic decay constants fK, fD and fDs with Nf = 2+1+1 twisted-mass lattice QCD
• Distribution amplitudes and decay constants for $(\pi ,K,\rho ,K^{\ast })$ mesons in light-front quark model
• A chiral Lagrangian for excited pions
• Excited pions, rho- and omega-mesons and their decays in a chiral SU(2) x SU(2) Lagrangian
• Study of tau- --> V P- nu(tau) in the framework of resonance chiral theory
• Decay constants of pseudoscalar and vector mesons with improved holographic wavefunction
• The decays ${\rho }^{-}\to \eta {\pi }^{-}$ and ${\tau }^{-}\to \eta ({\eta }^{\prime }){\pi }^{-}\nu$ in the NJL model
• The decays $\tau \to {\nu }_{\tau }(K^{\ast }(892),K^{\ast }(1410),K_1(1270),K_1(1650),a_1(1260),a_1(1640))$ in the Extended Nambu-Jona-Lasinio Model

Cited by in corpus (4)

• The decays $\tau \to [\omega (782),\varphi (1020)]K^{-}{\nu }_{\tau }$ in the extended NJL model
• The decay $\tau \to K^{\ast -}(892)\eta {\nu }_{\tau }$ in the NJL model
• The decay $\tau \to K^{\ast 0}(892)K^{-}{\nu }_{\tau }$ in the extended NJL model
• About The Polarized $\tau$ Lepton Radiative Decay