Detection of φ → a0(980)γ, f0(980)γ and φ → ηγ, φ → η'γ with the KLOE detector at DAΦNE

KLOE has analysed 16.6 pb^-1 of total 30 pb^-1 collected at DAΦNE by the end of 2000. The preliminary results for the branching ratios BR(φ → f₀(980)γ) = (23.7 ± 0.6_stat) × 10^-5 and BR(φ → a₀(980)γ) = (5.8 ± 0.5_stat) × 10^-5 lead to a ratio BR(φ → f₀(980)γ)/BR(φ → a₀(980)γ) = 4.1 ± 0.4 _stat with a systematic error which will not exceed 10%. The ratio BR(φ → η'γ)/BR(φ → ηγ) has been measured to about 10% accuracy leading to a very accurate determination of the mixing angle varphi_P = (40^+1.7_-1.5)^o and to the most accurate determination of BR(φ → η'γ) to date, BR(φ → η'γ) = (6.8 ± 0.6 ± 0.5) · 10^-5.