Artículo
Shape phase transition in odd nuclei in a multi- j model: The UB(6) ⊗ UF(12) case
Autor/es | Alonso Alonso, Clara Eugenia
Arias Carrasco, José Miguel Vitturi, Andrea |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2007 |
Fecha de depósito | 2017-04-27 |
Publicado en |
|
Resumen | The phase transition in odd nuclei when the underlying even-even core nuclei experience a transition from spherical to deformed γ-unstable shapes is investigated. The odd particle is assumed to be moving in the three ... The phase transition in odd nuclei when the underlying even-even core nuclei experience a transition from spherical to deformed γ-unstable shapes is investigated. The odd particle is assumed to be moving in the three single-particle orbitals j=1/2,3/2, and 5/2. At the critical point in the phase transition, an analytic solution to the corresponding Bohr Hamiltonian, called E(5/12), is worked out. Energy spectra and electromagnetic transitions and moments are presented. The same problem is also attacked in the framework of the interacting boson-fermion model (IBFM). Two different Hamiltonians are used. The first one is constructed ad hoc so as to mimic the situation in the E(5/12) model. The second one leads to the occurrence of the OB(6) ⊗ UF(12) symmetry when the boson part approaches the O(6) condition. The entire transition line is studied with this Hamiltonian and, in particular, the critical point. Both IBFM calculations at the critical point are consistent with the E(5/12) results. |
Agencias financiadoras | Ministerio de Educación y Ciencia (MEC). España European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) |
Identificador del proyecto | FIS2005-01105 |
Cita | Alonso Alonso, C.E., Arias Carrasco, J.M. y Vitturi, A. (2007). Shape phase transition in odd nuclei in a multi- j model: The UB(6) ⊗ UF(12) case. Physical Review C - Nuclear Physics, 75 (6), 064316. |
Ficheros | Tamaño | Formato | Ver | Descripción |
---|---|---|---|---|
Shape phase transition in odd.pdf | 544.9Kb | [PDF] | Ver/ | |