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30 January 2019 to 3 February 2019
Schladming, Austria
Europe/Vienna timezone

Signs of universal vector-meson coupling constants $f_\rho$, $f_\omega$, $f_\Phi$ with photon

30 Jan 2019, 17:00
30m
Schladming, Austria

Schladming, Austria

JUFA Hotel Schladming Coburgstraße 253 8970 Schladming Austria

Speaker

Stanislav Dubnicka (Institute of Physics)

Description

Universal coupling constants $f_\rho$, $f_\omega$, $f_\Phi$ are determing the lepton decay widths of vector mesons in a quadratic form, therefore in their numerical evaluation from experimental values of $\Gamma(V\to e^+e^-)$ one does not know their signs. It is demonstrated strong dependence of the signs of $f_\rho$, $f_omega$, f_{\rho} on the $\omega-\Phi$ mixing forms. However, by application of the $\omega-\Phi$ mixing directly to electromagnetic currents of $\omega$ and $\Phi$ vector mesons and by a comparison of obtained results with Kroll-Lee_Zumino electromagnetic current to be identified with a linear combination of renormalized $\rho^0$, $\omega$ and $\Phi$ fields, signs of all coupling constants $f_{\rho}, $f_{\omega}$ and $f_{Phi}$ are specified.

Primary authors

Cyril Adamuscin (Slovak Academy of Sciences (SK)) Stanislav Dubnicka (Institute of Physics) Adubni Dubnickova (Comenius University (SK))

Presentation materials