摘要: Results are presented from studies of the inclusive photon spectra in hadronic decays of the UPSILON' and UPSILON and the exclusive channel UPSILON' implies gamma gamma UPSILON implies alpha alpha l exp + l exp - , by the Crystal ... 展开 Results are presented from studies of the inclusive photon spectra in hadronic decays of the UPSILON' and UPSILON and the exclusive channel UPSILON' implies gamma gamma UPSILON implies alpha alpha l exp + l exp - , by the Crystal Ball detector at DORIS II. We measure two signals in the UPSILON' implies gamma + anything inclusive channel at E( gamma ) == 108.3 +- 0.9 +- 3.0 MeV and at E( gamma ) == 127.5 +- 1.2 +- 4.0 MeV. Branching ratios obtained for these signals are: BR(UPSILON' implies gamma (108) + anything) == (6.3 +- 1.3 +- 1.4)% BR(UPSILON' implies gamma (128) + anything) == (6.0 +- 1.3 +- 1.4)%. (ERA citation 09:001471) 收起