出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:Using about 226£106 J=y events and 106£106 y0 events collected with the BESIII detector at the BEPCII e+e¡ collider, the Dalitz plot of h0 !hp+p¡ decay is studied, the direct measurement of a00 (980)¡ f0(980) mixing is performed, X(2120) and X(2370) are observed in the p+p¡h0 invariant mass spectrum, y0 !gp0 and y0 !gh are observed for the first time, and the decays ccJ !gV (V =f , r0, w) are studied.