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Article

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Published version

Publication date

1994

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/12242

Width of the Delta the resonance in nuclei

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http://dx.doi.org/10.1103/PhysRevC.50.501

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.

Subject

Partícules (Física nuclear), Estructura nuclear

Subject (English)

Particles (Nuclear physics), Nuclear structure

Citation

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

HJORTH-JENSEN, M., MÜTHER, Herbert and POLLS MARTÍ, Artur. Width of the Delta the resonance in nuclei. Physical Review C. 1994. Vol. 50, num. 1p. ISSN 0556-2813. [consulted: 10 of June of 2026]. Available at: https://hdl.handle.net/2445/12242

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