Speaker
Erik Bartos
(Institute of Physics of the Slovak Academy of Sciences)
Description
The $\rho(770)$, $\rho(1450)$, $\rho(1700)$ mesons exist in three charged states $\rho^{0}$, $\rho^{+}$ and $\rho^{-}$, whereby masses of positively charged mesons are identical with masses of negatively charged mesons, due to the CPT theorem. However, there is no reason for the identity of charged meson masses with neutral meson masses. For determination of differences of masses and decay widths of charged and neutral $\rho(770)$, $\rho(1450)$, $\rho(1700)$ mesons are employed the data on $e^{+}e^{-}\to \pi^{+}\pi^{-}$ an $\tau^{-}\to\pi^{-}\pi^{0}\nu_{\tau}$ processes to be analyzed by the Unitary and Analytic models of the electromagnetic and weak pion form factors, respectively.
Author
Erik Bartos
(Institute of Physics of the Slovak Academy of Sciences)
Co-authors
Adubni Dubnickova
(Comenius University (SK))
Hisaki Hayashii
(nara women's university)
Stanislav Dubnicka
(Institute of Physics)
