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Non-collapsing renormalized QRPA with proton-neutron pairing for neutrinoless double beta decay | | F. Simkovic
; J. Schwieger
; M. Veselsky
; G. Pantis
; Amand Faessler
; | | Date: |
14 Dec 1996 | | Journal: | Phys.Lett. B393 (1997) 267-273 | | Subject: | nucl-th | | Abstract: | Using the renormalized quasiparticle random phase approximation (RQRPA), we calculate the light neutrino mass mediated mode of neutrinoless double beta decay of Ge76, Mo100, Te128 and Te130. Our results indicate that the simple quasiboson approximation is not good enough to study the neutrinoless double beta decay, because its solutions collapse for physical values of g_pp. We find that extension of the Hilbert space and inclusion of the Pauli Principle in the QRPA with proton-neutron pairing, allows us to extend our calculations beyond the point of collapse, for physical values of the nuclear force strength. As a consequence one might be able to extract more accurate values on the effective neutrino mass by using the best available experimental limits on the half-life of neutrinoless double beta decay. | | Source: | arXiv, nucl-th/9612037 | | Services: | Forum | Review | PDF | Favorites | |
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