Some properties of the newly observed X(1835) state at BES Xiao-Gang He, Xue-Qian Li, Xiang Liu and Jian-Ping Ma Eur. Phys. J. C, 49 3 (2007) 731-736 Published online: 21 November 2006 DOI: 10.1140/epjc/s10052-006-0129-y