Recent results on light hadron spectroscopy at BESIII

Recent results on light hadron spectroscopy based on 2.25 x 10(8) J/psi events and 1.06 x 10(8)psi' events taken by BESIII detector operating at BEPCII e(+)e(-) collider are presented in this talk. A spin-parity analysis of p (p) over bar mass threshold enhancement has been firstly performed in J/psi and psi' radiative decays, and the spin-parity of the state near the p (p) over bar mass threshold enhancement is determined to be 0(-+). For J/psi -> gamma pi(0)pi(+)pi(-) and J/psi -> gamma pi(0)pi(0)pi(0), there is a very narrow f(0)(980) width and we observe the large isospin violating decay eta(1405)-> f(0)(980)pi(0) for the first time. The branching ratio is two times larger than the world average value in eta' -> pi(0)pi(0)pi(0). A preliminary partial wave analysis of J/psi ->gamma eta eta gives the results that f(0)(1710) and f(0)(2100) are dominant scalars and that f(0)(1500) exists with a significance of 8.2 sigma. A study of omega phi mass threshold enhancement in J/psi -> gamma omega phi is also performed by partial wave analysis.