Off-shell effects in the coherent π0 photoproduction off nuclei

Chumbalov, A.A.; Kamalov, S.S.

doi:10.1016/0370-2693(87)91669-8

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B Pwia and Dwia Nuclear Amplitudes1

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Cited by 9 publications

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“…Note that in the literature there are several prescriptions for the relations between total pion-nuclear energy E and W with various physical or mathematical motivations (see for example Refs. [13][14][15][16][17]). Using this freedom we in principle can effectively take into account medium effects and improve by this way (or "optimize") impulse approximation.…”

Section: B Pwia and Dwia Nuclear Amplitudesmentioning

confidence: 99%

Medium effects in coherent pion photo- and electroproduction on He and C

et al. 1999

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Coherent π 0 photo-and electroproduction on 4 He and 12 C nuclei is investigated in the framework of a distorted wave impulse approximation in momentum space. The elementary process is described by the recently developed unitary isobar model. Medium effects are considered by introducing a phenomenological ∆ self-energy. The recent experimental data for 4 He and 12 C can be well described over a wide range of energies and emission angles by the assumption that the ∆-nuclear interaction saturates.

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