Eur. Phys. J. A (2007) 31: 672-675
https://doi.org/10.1140/epja/i2006-10278-2

QNP 2006

New hadronic states observed at BES II

Institute of High Energy Physics, CAS, 100049, Beijing, China

Received: 18 December 2006
Accepted: 25 December 2006
Published online: 20 March 2007

Abstract

The report includes the new observation of X(1835) in J/ψ→γη ^′ π ⁺ π ^-, the ωφ threshold enhancement in J/ψ→γωφ, the ωω structure in J/ψ→γωω and the broad 1^- structure at the low K ⁺ K ^- invariant-mass spectrum in J/ψ→K ⁺ K ^- π ⁰.