Speaker
Alexander Rudenko
(Novosibirsk State University)
Description
The width of $f_1 (1285) \to e^+e^-$ decay is calculated in the vector meson dominance model. The result depends on the relative phase between two coupling constants describing $f_1 \to \rho^0\gamma$ decay. The $\Gamma (f_1 \to e^+e^-)$ is estimated to be $\simeq 0.07 \div 0.19$ eV. Direct $f_1$ production in $e^+e^-$ collisions is discussed, and the $e^+e^- \to f_1\to a_0 \pi \to \eta \pi \pi$ cross section is calculated. Charge asymmetry in the $e^+e^- \to \eta \pi^+ \pi^-$ reaction due to interference between the $e^+e^- \to f_1$ and $e^+e^- \to \eta \rho^0$ amplitudes is studied.
| Topic: | Topic: High Energy Particle Physics |
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Primary author
Alexander Rudenko
(Novosibirsk State University)
