Elsevier

Nuclear Physics B

Volume 154, Issue 2, 23 July 1979, Pages 205-225
Nuclear Physics B

Polarisation parameters in positive pion photoproduction

https://doi.org/10.1016/0550-3213(79)90511-XGet rights and content

Abstract

Measurements have been made of the polarisation parameters Σ, T and P for the process γp → π+n in the photon energy range 520–2250 MeV at c.m. angles between 30° and 120°. These data were obtained in a double polarisation experiment, using the polarised photon beam from the Daresbury electron synchrotron incident on a polarised proton target. The data are compared with predictions from current theoretical analyses.

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    Present address: Rutherford Laboratory, Chilton, UK

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    Present address: Argonne National Laboratory, Lemont, Illinois, USA

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    Present address: New Scientist, London.

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