Abstract:
We evaluate the spreading width of the giant resonances using the discontinuity in the second derivative of the propagator of the vibrational phonon. This allows us to isolate the processes that contribute to the spreading width in terms of the Feynman diagrammatic expansion of the full boson propagator. Utilizing for classification purposes the nuclear field theory perturbative treatment of the one-phonon state, we obtain a very simple expression for the spreading width in the lowest (nonvanishing) order of perturbation theory. © 1994 The American Physical Society.
Registro:
Documento: |
Artículo
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Título: | Analysis of the spreading width of the particle-hole giant resonances |
Autor: | Dussel, G.G.; Seva, E.C.; Sofia, H.M. |
Filiación: | Departamento de Física, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina Departamento de Física, Comisión Nacional de Energía Atómica, Avenida del Libertador 8250, 1429 Buenos Aires, Argentina
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Año: | 1994
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Volumen: | 49
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Número: | 4
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Página de inicio: | 1989
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Página de fin: | 1998
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DOI: |
http://dx.doi.org/10.1103/PhysRevC.49.1989 |
Título revista: | Physical Review C
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ISSN: | 05562813
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v49_n4_p1989_Dussel |
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Citas:
---------- APA ----------
Dussel, G.G., Seva, E.C. & Sofia, H.M.
(1994)
. Analysis of the spreading width of the particle-hole giant resonances. Physical Review C, 49(4), 1989-1998.
http://dx.doi.org/10.1103/PhysRevC.49.1989---------- CHICAGO ----------
Dussel, G.G., Seva, E.C., Sofia, H.M.
"Analysis of the spreading width of the particle-hole giant resonances"
. Physical Review C 49, no. 4
(1994) : 1989-1998.
http://dx.doi.org/10.1103/PhysRevC.49.1989---------- MLA ----------
Dussel, G.G., Seva, E.C., Sofia, H.M.
"Analysis of the spreading width of the particle-hole giant resonances"
. Physical Review C, vol. 49, no. 4, 1994, pp. 1989-1998.
http://dx.doi.org/10.1103/PhysRevC.49.1989---------- VANCOUVER ----------
Dussel, G.G., Seva, E.C., Sofia, H.M. Analysis of the spreading width of the particle-hole giant resonances. 1994;49(4):1989-1998.
http://dx.doi.org/10.1103/PhysRevC.49.1989