IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
$2\nu$ Double Beta Decay within the Relativistic QRPA
Autor/es:
C. DE CONTI; F. KRMPOTIC; B. V. CARLSON
Lugar:
Foz de Iguacu, Parana
Reunión:
Workshop; XXXIV Brazilian Workshop on Nuclear Physics; 2011
Resumen:
We perform a self-consistent relativistic QRPA (RQRPA) calculation for the$2\nu\b\b$-decays, which are  basedon  relativistic BCS (RBCS) mean field theory results forodd-odd intermediate nuclei $^{48}$Sc, $^{76}$As, $^{82}$Br, $^{100}$Tc, $^{128}$I, and $^{130}$I.The RBCS equations that resemble  the non-relativistic ones are  build up froma Dirac-Gorkov variational functional. We use the parameter set $NL1$ for the $\sigma$, $\omega$ and $\rho$ mesons.The RQRPA equations  aresolved for the residual $\pi+\rho$ interaction by employing for the later mesonthe same parameters used in the RBCS, and experimental values for the pion and nucleon.The RQRPA  results  for the ${2\nu}\b\b$ matrix elementsare similar to those obtained within the QRPA and the shell model.
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