Based on a sample of 2.25×108 J/ψ events collected with the BESIII detector at BEPCII, a full partial wave analysis on J/ ψ→γηη was performed using the relativistic covariant tensor amplitude method. The results show that the dominant 0++ and 2++ components are from the f0(1710), f0(2100), f0(1500), f2′(1525), f2(1810) and f 2(2340). The resonance parameters and branching fractions are also presented.
|Original language||English (US)|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|State||Published - May 21 2013|
Bibliographical noteFunding Information:
The BES Collaboration thanks the staff of BEPC and computing center for their hard efforts. This work is supported in part by the National Natural Science Foundation of China under contracts Nos. 10491300, 10225524, 10225525, 10425523, 10625524, 10521003, the Chinese Academy of Sciences under contract No. KJ 95T-03, the 100 Talents Program of CAS under Contract Nos. U-11, U-24, U-25, and the Knowledge Innovation Project of CAS under Contract Nos. U-602, U-34 (IHEP), the National Natural Science Foundation of China under Contract No. 10225522 (Tsinghua University), and the Department of Energy under Contract No. DE-FG02-04ER41291 (U. Hawaii).