A measurement of the azimuthal angle dependence of the process ep → enπ+ near threshold |
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Authors: | A. Del Guerra A. Giazotto M.A. Giorgi A. Stefanini D.R. Botterill D.W. Braden P.R. Norton |
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Affiliation: | 1. Istituto di Fisica dell''Universita, Pisa, Italy;2. INFN Sezione di Pisa, Italy |
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Abstract: | The azimuthal angle dependence of the process ep → enπ+ has been measured by detecting the electron and neutron in coincidence. Data are presented for momentum transfers (?k2) between 0.08 and 0.32 and at energies close to threshold. Fixed-t dispersion relation models give predictionsin good qualitative agreement with the data. |
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