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Efficient double beta decay nuclear matrix elements computations

Neacsu, Andrei
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Abstract

We have developed a shell model code for the accurate computation of the two-body matrix elements of the transition operators involved in the neutrinoless double beta decay. This code features coupled cluster method short-range correlations with Jastrow-like functions, finite nucleon size effect and higher order nucleon current corrections. We present the results obtained for {sup 48}Ca and {sup 82}Se, then we compare them with other results in the literature. In the case of {sup 48}Ca, we also study the contributions of the included effects and find good agreement with other published results.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSCALCIUM 48CALCULATION METHODSCLUSTER MODELCOMPARATIVE EVALUATIONSCORRECTIONSCORRELATIONSDOUBLE BETA DECAYMASS NUMBERMATRIX ELEMENTSNUCLEAR MATRIXNUCLEAR STRUCTURESELENIUM 82SHELL MODELSTWO-BODY PROBLEM

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Neacsu, Andrei. 2012-11-20. Efficient double beta decay nuclear matrix elements computations. https://doi.org/10.1063/1.4768518

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