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Properties of the Roper resonance, the first scalar excitation of thenucleon, are determined. Pole positions and residues of the $P_{11}$ partialwave are studied in a combined analysis of pion- and photo-induced reactions.We find the Roper pole at $\{(1371\pm7)-i(92\pm10)\}$ MeV and an elasticity of$0.61\pm 0.03$. The largest decay coupling is found for the $N\sigma$($\sigma=(\pi\pi)$-$S$-wave). The analysis is based on new data on $\gamma p\top\pi^0\pi^0$ for photons in the energy range from the two-pion threshold to 820MeV from TAPS at Mainz and from 0.4 to 1.3 GeV from Crystal Barrel at Bonn andincludes further data from other experiments. The partial wave analysisexcludes the possibility that the Roper resonance is split into two states withdifferent partial decay widths.

New results on the Roper resonance and the P_{11} partial wave