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Interference Effects for 0νββ Decay in the Left-Right Symmetric Model

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arxiv 1912.02850 v3 pith:ZTCAN5GQ submitted 2019-12-05 nucl-th hep-ph

Interference Effects for 0νββ Decay in the Left-Right Symmetric Model

classification nucl-th hep-ph
keywords interferencedecaybetamechanismsleft-rightmodelsymmetriccontribute
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Various mechanisms may contribute to neutrinoless double beta decay in the left-right symmetric model. The interference between these mechanisms also contribute to the overall decay rate. The analysis of the contributions of these interference terms is important for disentangling different mechanisms. In the present paper we study interference effects contributing to the decay rate for neutrinoless double-$\beta$ decay in the left-right symmetric model. The numerical values for maximum interference for several nuclides are calculated. It is observed that, for most of the interference terms, the contribution is smaller than 20$\%$ for all the nuclei considered in the study. However, the interference between the mass mechanisms (light and heavy) and $\eta$ mechanism is observed to be in the range 30$\%$-50$\%$. The variation of the interference effect with the $Q$ values is also studied.

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