Abstract
In this paper we briefly review the formalism of the nuclear Compton scattering in the frame of the low-energy theorems (LET). We treat the resonant terms of the amplitude, having collective intermediate nuclear states, as a superposition of Lorentz lines with energy, width and strength fixed by the photo-absorption experiments. The gauge terms are evaluated starting from a simple, but realistic, nuclear Hamiltonian. Dynamical nucleon-nucleon correlations are consistently taken into account, beyond those imposed by the Pauli principle. The comparison of the theoretical predictions with the data of elastic diffusion of photons from208Pb shows that LET are insufficient to account for the experiment.
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On leave of absence from Istituto di Fisica Teorica dell'Università di Torino, Italy
We wish to thank Professors M. Ericson, T.E.O. Ericson, M. Rosa-Clot and B. Ziegler for useful discussions. We also thank Professor S. Fubini for encouraging this work in the perspective of utilizing the synchrotron radiation of LEP in photonuclear physics.
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Alberico, W.M., Molinari, A. Compton scattering on208Pb. Z Physik A 309, 143–149 (1982). https://doi.org/10.1007/BF01414975
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DOI: https://doi.org/10.1007/BF01414975