Volume 390 -
40th International Conference on High Energy physics (ICHEP2020) -
Posters: Neutrino Physics

Comparison of symmetric and asymmetric LR model in the context of $0\nu\beta\beta$ decay

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Abstract

We study the new physics contributions to neutrinoless double beta decay ($0\nu\beta\beta$) in a TeV scale left-right model with spontaneous D-parity breaking mechanism where $g_L \neq g_R$. We compare the predicted numerical values of half life of $0\nu\beta\beta$ decay, effective Majorana mass parameter for three different cases; (i) for manifest left-right symmetric model ($g_L = g_R$), (ii) for left-right model with spontaneous D parity breaking ($g_L \neq g_R$), (iii) for Pati-Salam symmetry with D parity breaking ($g_L \neq g_R$). We show that depending upon the values of the ratio $\frac{g_R}{g_L}$ how different contributions to $0\nu\beta\beta$ decay are suppressed or enhanced.

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