Speaker
Description
Within Neutrino Physics, Seesaw mechanism is a very important pillar, known to all. Various Seesaw types make it an interesting phenomenon to include and verify it's validity in several low energy processes. Such a low energy and LNV ($\Delta L = 2$) process is the neutrinoless double beta decay ($0\nu\beta\beta$). If the $0\nu\beta\beta$ decay process is being observed in Left-right symmetric model, the effective mass of electron neutrino ( $m_{eff}^{<0\nu\beta\beta>}$ ) would be a function of $v_R$ (vev of right-handed Higgs triplet) and Majorana phases ($\alpha$ and $\beta$). This $v_R$ is basically the high energy scale (Weinberg's dim = 5 operator), which allows to explore new physics beyond Standard model. The Left-right symmetric model in general includes Seesaw type-I and type-II mass terms as a hybrid mass for light neutrino and the percentage of type-I and II contributions (termed as dominance) differs for different solutions. We are studying different dominance patterns ($2^n, n=3(gen)$) for the effective mass of ($0\nu\beta\beta$) decay with given experimental bounds (Kamland-Zen \& GERDA).
| Session | Neutrino Physics |
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