Title:
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Momentum and energy distributions of nucleous in finite nuclei due to short-range correlations
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Author:
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Müther, Herbert; Polls Martí, Artur; Dickhoff, Willem H.
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Other authors:
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Universitat de Barcelona |
Abstract:
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ABSTRACT
The influence of short-range correlations on the momentum and energy distribution of nucleons in nuclei is evaluated assuming a realistic meson-exchange potential for the nucleon-nucleon interaction. Using the Green-function approach the calculations are performed directly for the finite nucleus
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avoiding the local density approximation and its reference to studies of infinite nuclear matter. The nucleon-nucleon correlations induced by the short-range and tensor components of the interaction yield an enhancement of the momentum distribution at high momenta as compared to the Hartree-Fock description. These high-momentum components should be observed mainly in nucleon knockout reactions like (e,e’p) leaving the final nucleus in a state of high excitation energy. Our analysis also demonstrates that non-negligible contributions to the momentum distribution should be found in partial waves which are unoccupied in the simple shell model. The treatment of correlations beyond the Brueckner-Hartree-Fock approximation also yields an improvement for the calculated ground-state properties. |
Subject(s):
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-Estructura nuclear -Reaccions nuclears -Nuclear structure -Nuclear reactions |
Rights:
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(c) The American Physical Society, 1995
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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