Collective excitations in the continuum

Pairing (particle-particle) giant resonances are analyzed within a shell-model formalism in the complex energy plane with the aim of understanding why they have not been observed so far. A comparison is made with the equivalent particle-hole mode by applying the formalism to the analysis of the well...

Descripción completa

Detalles Bibliográficos
Autor principal: Dussel, Guillermo Gaspar
Otros Autores: Betan, R.I, Liotta, R.J, Vertse, T.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: American Physical Society 2009
Acceso en línea:Registro en Scopus
DOI
Handle
Registro en la Biblioteca Digital
Aporte de:Registro referencial: Solicitar el recurso aquí
Descripción
Sumario:Pairing (particle-particle) giant resonances are analyzed within a shell-model formalism in the complex energy plane with the aim of understanding why they have not been observed so far. A comparison is made with the equivalent particle-hole mode by applying the formalism to the analysis of the well-understood particle-hole giant resonance. It is found that because of the proper treatment of the continuum intrinsic to the formalism, giant pairing resonances lie much higher than previously predicted and that some of them may be too wide to be observed, whereas others are meaningful excitations. For these, new experimental searches are proposed. © 2009 The American Physical Society.
Bibliografía:Bohr, A., Mottelson, B., (1998) Nuclear Structure, , World Scientific, Singapore
Broglia, R., Bes, D.R., (1977) Phys. Lett., 69, p. 129. , PYLBAJ 0370-2693 10.1016/0370-2693(77)90625-6
Herzog, M.W., Liotta, R.J., Sibanda, L.J., (1985) Phys. Rev. C, 31, p. 259. , PRVCAN 0556-2813 10.1103/PhysRevC.31.259
Herzog, M.W., Civitarese, O., Ferreira, L.S., Liotta, R.J., Vertse, T., Sibanda, L.J., (1986) Nucl. Phys., 448, p. 441. , NUPABL 0375-9474 10.1016/0375-9474(86)90337-4
Fortunato, L., Von Oertzen, W., Sofia, H.M., Vitturi, A., (2002) Eur. Phys. J. A, 14, p. 37. , EPJAFV 1434-6001 10.1140/epja/iepja1348
Pillet, N., Sandulescu, N., Schuck, P., (2007) Phys. Rev. C, 76, p. 024310. , PRVCAN 0556-2813 10.1103/PhysRevC.76.024310
Liotta, R.J., Maglione, E., Sandulescu, N., Vertse, T., (1996) Phys. Lett., 367, p. 1. , PYLBAJ 0370-2693 10.1016/0370-2693(95)01415-2
Dussel, G.G., Id Betan, R., Liotta, R.J., Vertse, T., (2007) Nucl. Phys., 789, p. 182. , NUPABL 0375-9474 10.1016/j.nuclphysa.2007.04.005
Michel, N., Nazarewicz, W., Płoszajczak, M., Vertse, T., (2009) J. Phys. G, 36, p. 013101. , JPGPED 0954-3899 10.1088/0954-3899/36/1/013101
Id Betan, R.M., Liotta, R.J., Sandulescu, N., Vertse, T., Wyss, R., (2005) Phys. Rev. C, 72, p. 054322. , PRVCAN 0556-2813 10.1103/PhysRevC.72.054322
Berggren, T., (1968) Nucl. Phys., 109, p. 265. , NUPABL 0375-9474 10.1016/0375-9474(68)90593-9
Id Betan, R., Liotta, R.J., Sandulescu, N., Vertse, T., (2003) Phys. Rev. C, 67, p. 014322. , PRVCAN 0556-2813 10.1103/PhysRevC.67.014322
Curutchet, P., Vertse, T., Liotta, R.J., (1989) Phys. Rev. C, 39, p. 1020. , PRVCAN 0556-2813 10.1103/PhysRevC.39.1020
Vertse, T., Liotta, R.J., Maglione, E., (1995) Nucl. Phys., 584, p. 13. , NUPABL 0375-9474 10.1016/0375-9474(94)00502-E
Van Der Woude, A., (1987) Prog. Part. Nucl. Phys., 18, p. 217. , PPNPDB 0146-6410 10.1016/0146-6410(87)90011-1
Gales, S., Stoyanov, Ch., Vdovin, A.I., (1988) Phys. Rep., 166, p. 125. , PRPLCM 0370-1573 10.1016/0370-1573(88)90066-X
Anderson, R.E., Batay-Csorba, P.A., Emigh, R.A., Flynn, E.R., Lind, D.A., Smith, P.A., Zafiratos, C.D., De Vries, R.M., (1979) Phys. Rev. C, 19, p. 2138. , PRVCAN 0556-2813 10.1103/PhysRevC.19.2138
Lanford, W.A., (1977) Phys. Rev. C, 16, p. 988. , PRVCAN 0556-2813 10.1103/PhysRevC.16.988
Zybert, L., (1987) Nuclear Structure
Zegers, R.G.T., (2006) Phys. Rev. C, 74, p. 024309. , PRVCAN 0556-2813 10.1103/PhysRevC.74.024309
Hoffmann, G.W., Igo, G.J., Whitten, C.A., Dunlop, W.H., Kulleck, J.G., (1972) Phys. Rev. Lett., 28, p. 41. , PRLTAO 0031-9007 10.1103/PhysRevLett.28.41
ISSN:05562813
DOI:10.1103/PhysRevC.80.064311