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Measurement of the angular distribution of the polarization of the recoil proton from the photoproduction of neutral pions on hydrogen at a photon energy of 360 MeV. II

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Zeitschrift für Physik

Abstract

The angular distribution of the polarization of the recoil protons from the reactionγ+p→π 0+p has been measured at a photon energy of 360 MeV and at pion CM angles of 58°, 75°, 96° and 105°. The polarization of the protons has been determined by the left to right ratio in scattering on a helium gas target. The trajectory of each scattered proton has been measured by a system of spark chambers.

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This work was supported by the „Bundesministerium für wissenschaftliche Forschung“.

We want to thank Professor W.Paul for his support and his interest in this experiment. The discussions with Dr. A.Müllensiefen, Professor H.Rollnik and R.Weizel concerning the interpretation of the data were very useful. The help of D.Finken in the last stage of the experiment is gratefully acknowledged. We would also like to thank the synchrotron crew for their continuous assistance. The use of the IBM 7090 computer of the „Institut für Instrumentelle Mathematik“ was of great help in evaluating the data.

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Althoff, K.H., Kramp, K., Matthäy, H. et al. Measurement of the angular distribution of the polarization of the recoil proton from the photoproduction of neutral pions on hydrogen at a photon energy of 360 MeV. II. Z. Physik 194, 144–155 (1966). https://doi.org/10.1007/BF01326042

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  • DOI: https://doi.org/10.1007/BF01326042

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