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Title: Width of the Delta the resonance in nuclei
Author: Hjorth-Jensen, M.
Müther, Herbert
Polls Martí, Artur
Keywords: Partícules (Física nuclear)
Estructura nuclear
Particles (Nuclear physics)
Nuclear structure
Issue Date: 1994
Publisher: The American Physical Society
Abstract: In this work we evaluate the imaginary part of the isobar Δ self-energy Σ Δ from the two-body absorption process Δ+N→2N. This contribution is calculated using a recently developed nonrelativistic scheme, which allows for an evaluation of the self-energy with a basis of single-particle states appropriate for both bound hole states and for particle states in the continuum. In order to test the medium dependence of the self-energy, we calculate the two-body absorption term Σ A 2 Δ for several finite nuclei with N=Z, i.e., 16 O , 40 Ca , and 100 Sn . The resulting self-energy, which is energy dependent and nonlocal, is compared with a simple parametrization derived from nuclear matter.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review C, 1994, vol. 50, núm. 1p. 501-504
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ISSN: 0556-2813
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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