10–13 Sept 2019
University of Perugia (Italy)
Europe/Zurich timezone

Study of the kaon electromagnetic form factors in $e^+e^-$ annihilation and $\tau$ decays

10 Sept 2019, 17:46
1m
Aula Magna (University of Perugia (Italy))

Aula Magna

University of Perugia (Italy)

Piazza dell'Università 1, 06123 Perugia (Italy)

Speaker

Dr Sergey Serednyakov (Novosibirsk State University)

Description

The recent measurements of the $\tau^-\ to K^-K_S \nu_\tau$ decay spectral function carried out with BABAR detector is described. Combining the results on $K^-K_$ mass spectrum and measurements of $e^+e^-\to K_SK_L$ and $e^+e^-\to K^+K^-$ cross sections, the isoscalar and isovector electromagnetic kaon form factors and their relative phase are derived in a model independent way. The experimental results are compared with a fit based on the vector-meson-dominance model.

Primary author

Dr Sergey Serednyakov (Novosibirsk State University)

Presentation materials