26-30 July 2021
Europe/Berlin timezone

Study of scalar meson production in three body $\eta_c$ decays at BABAR

Not scheduled


Poster QCD and Hadronic Physics T06: QCD and Hadronic Physics


Dave Muller


We perform Dalitz plot analysis of $\eta_c$ decays to $\eta^{\prime} K^+ K^-$, $\eta^{\prime} \pi^+ \pi^-$, and $\eta \pi^+ \pi^-$, where the $\eta_c$ is produced in two-photon interactions. We measure the parameters of $K^*_0(1430)$ and $K^*_0(1950)$ and observe production of $\sigma(600)$, $f_0(1400)$ and $f_0(1710)$ resonances. We observe new resonances decaying to $\pi^+ \pi^-$ in the $\eta^{\prime} \pi^+ \pi^-$ and $\eta \pi^+ \pi^-$, decay modes of the $\eta_c$ meson. We also compare rates of production of glueball candidates $f_0(1500)$ and $f_0(1710)$ in $\eta$ and $\eta^{\prime}$ final states. Data have been collected by the BABAR experiment at the PEP-II $e^+e^-$ and correspond to an integrated luminosity of about 470 fb$^{-1}$.

Collaboration / Activity BABAR

Primary author

Presentation Materials