Back to Search Start Over

The tetraquark $K_{1}(1400)$ in the decays $\tau \to [\omega(782), \phi(1020)] K^{-} \nu_{\tau}$

Authors :
Volkov, M. K.
Pivovarov, Aleksey A.
Nurlan, K.
Publication Year :
2019

Abstract

In the extended Nambu--Jona-Lasinio model, the decay widths of the processes $\tau \to [\omega(782), \phi(1020)] K^{-} \nu_{\tau}$ were calculated. The intermediate strange quark-antiquark mesons in both the ground and the first radially excited states were taken into account. The meson $K_{1}(1400)$, being a possible candidate for the role of the tetraquark meson, was also taken into account as an intermediate state. The result for the process $\tau \to \omega(782) K^{-} \nu_{\tau}$ is in satisfactory agreement with the experimental data. Simultaneously, the result for the decay $\tau \to \phi(1020) K^{-} \nu_{\tau}$ is in agreement with the experimental data with precision $1.3 \sigma$.<br />Comment: Another explanation of the nature of the physical state $K_{1}(1400)$ was found

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1903.00698
Document Type :
Working Paper