Self-consistent random phase approximation within the O(5) model and Fermi transitions

dc.creatorKrmpotic, Francisco
dc.creatorPassos, E. J. V. de
dc.creatorDelion, D. S.
dc.creatorDukelsky, Jorge
dc.creatorSchuck, Peter
dc.date1998
dc.date2021-08-18T13:52:37Z
dc.date.accessioned2023-07-15T02:42:02Z
dc.date.available2023-07-15T02:42:02Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/122862
dc.identifierissn:0375-9474
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7462945
dc.descriptionSelf-consistent quasiparticle random phase approximation (SCQRPA) is considered in application to the Fermi transitions within the O(5) model. It is demonstrated that SCQRPA improves on renormalized QRPA (RQRPA), a method that has recently become rather popular in this context. The analytical form of the SCQRPA vacuum is used to evaluate all the matrix elements. The SCQRPA results show a general trend similar to the exact solutions. The necessity to change the single particle basis beyond the transition point, and to include the proton-proton and neutron-neutron channels in the QRPA operator, in addition to the proton-neutron one, is pointed out.
dc.descriptionFacultad de Ciencias Exactas
dc.formatapplication/pdf
dc.format295-324
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectFísica
dc.subjectPhysics
dc.subjectBasis (linear algebra)
dc.subjectQuasiparticle
dc.subjectMatrix (mathematics)
dc.subjectRandom phase approximation
dc.subjectOperator (physics)
dc.subjectTransition point
dc.subjectFermi Gamma-ray Space Telescope
dc.subjectContext (language use)
dc.subjectQuantum mechanics
dc.titleSelf-consistent random phase approximation within the O(5) model and Fermi transitions
dc.typeArticulo
dc.typePreprint


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