Nonadiabatic quasiparticle description of triaxially deformed proton emitters

Journal Article · Mon Oct 15 00:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.044311· OSTI ID:21067796

Arumugam, P; Ferreira, L S ^[1]; Maglione, E ^[2]

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1. Centro de Fisica das Interaccoes Fundamentais, and Departmento de Fisica, Instituto Superior Tecnico, Avenida Rovisco Pais, P1049-001 Lisbon (Portugal)
2. Dipartimento di Fisica 'G. Galilei', Via Marzolo 8, I-35131 Padova (Italy) and Istituto Nazionale di Fisica Nucleare, Padova (Italy)

Exact calculations are performed for proton emission from triaxial nuclei by extending the nonadiabatic quasiparticle method to include the triaxial degree of freedom. We present for the first time a proper formalism for triaxial proton emitters, which includes the treatment of the pairing residual interaction and the coupling with the excited states of the daughter nucleus. The results for the nuclei {sup 161}Re and {sup 185}Bi are discussed. In contrast to an earlier prediction, where this problem was addressed with approximate methods, a weak dependance on triaxial deformation, especially in the nonadiabatic case, is found.

• OSTI ID: 21067796
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 76, Issue 4; Other Information: DOI: 10.1103/PhysRevC.76.044311; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BISMUTH 185
COLLECTIVE MODEL
COUPLING
DEFORMED NUCLEI
DEGREES OF FREEDOM
EXCITED STATES
NUCLEAR DEFORMATION
NUCLEAR STRUCTURE
PROTON-EMISSION DECAY
QUASIPARTICLE-PHONON MODEL
RESIDUAL INTERACTIONS
RHENIUM 161