Speaker
Jingqing Zhang
(Nanjing Normal University (CN))
Description
BESIII has made lots of progress on light hadron spectroscopy. Using
J/psi radiative decays, we study the properties of η(1405) and f1(1420)
in J/psi ->gamma 3pi0. Amplitude analyses of J/psi->gamma KsKs and
psi(2S)->phi eta eta’ are performed, where an axial-vector state is
observed. In addition, we report the observation of psi(2S)->gamma
eta(1405) with eta(1405)->f0(980)pi0. These measurements improve our
understanding of light mesons and non-perturbative QCD.
Author
Jingqing Zhang
(Nanjing Normal University (CN))