The reaction e+e~e+e m. m has been analyzed using 97 pb ' of data taken with the Crystal Ball detector at the DESY e e+ storage ring DORIS II at beam energies around 5.3 GeV. For the first time we have measured the cross section for yy~m. m. for n m invariant masses ranging from threshold to about 2 GeV. We measure an approximately flat cross section of about 10 nb for 8'=m 0 0 (0.8 GeV, which is below 0.6 GeV, in good agreement with a theoretical prediction 'tr n' based on an unitarized Born-term model. At higher invariant masses we observe formation of the ft(1270) resonance and a hint of the fo(975). We deduce the following two-photon widths: I rr(f, (1270)) =3.19+0. 1620 z, keV and I "(fo( 975)) (0.53 keV at 90% CL. The decayangular distributions show the m~system to be dominantly spin 0 for W &0.7 GeV and spin 2, helicity 2 in the f, (1270) region, with helicity 0 contributing at most 22% (90% C.L.).

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A 'burden reducing' agenda has spurred an increased interest in how EU environmental legislation is transposed into national legislation-most prominently reflected in the principle of 'no gold-plating'. Yet, an important question is to what extent transposition principles and practices may ensure a coherent and accessible body of environmental legislation, while at the same time ensuring adequate transposition of EU environmental legislation. This article analyses the existence, or emergence, of transposition principles and practices in three Member States-the United Kingdom, the Netherlands and Denmark. It also examines how EU initiatives may influence these principles and practices. The article concludes that the steering of transposition processes by general transposition principles and objectives alone, and in particular those dominated by a 'burden reducing' agenda, has a limited focus on coherence and accessibility with respect to environmental legislation and that such issues deserve more attention in the transposition process.

Using the Crystal Ball detector at the e+e-storage ring DORIS II, we have measured the energy spectrum of direct photons from "f(IS) decays. According to QCD, these photons result from the decays of the "f(IS) resonance into one photon and two gluons, T (1 S)-'l'gg-* T + hadrons. The shape of our spectrum does not agree with that calculated in lowest order QCD, but can be described well by a prediction incorporating gluon self-interaction. Using this fit, the ratio Rv=F('f-,'tgg)/F(F~ggg) is determined to be (2.7+0.2+0.4)%. From this ratio we deduce the strong coupling constant in the MS scheme at Q2=2.2 GeV 2 and find cq= 0.25 + 0.02 + 0.04.

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