Multipole analysis of π+ and π0 photoproduction from threshold to Eγ = 330 MeV |
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| Authors: | M Nigro P Spillantini V Valente |
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| Institution: | Istituto di Fisica dell''Università di Padova e INFN, Padova, Italy;Laboratori Nazionali di Frascati del CNEN, Frascati, Italy |
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| Abstract: | We present results of an energy independent multipole analysis of π+ and π0 photoproduction on protons for photon energies between 160 MeV and 330 MeV. Each isospin part of the l ? 1 amplitudes has been parametrized; the 1 ? 2 amplitudes have been approximated by the Born terms. Unambiguous solutions for all the multipoles in the whole range of Eγ have been obtained. The continuity of the solutions as functions of the energy is very good. |
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