July 28, 2020 to August 6, 2020
virtual conference
Europe/Prague timezone

A comparative study of 0νββ decay in symmetric and asymmetric left-right model

Jul 29, 2020, 1:36 PM
virtual conference

virtual conference

Poster 02. Neutrino Physics Neutrino Physics - Posters


Supriya Senapati (Indian Institute of Technology, Bombay)


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 the values of the $SU(2)_L$ and $SU(2)_R$ gauge couplings, $g_L$ and $g_R$ are unequal. Neutrino mass is generated in the model via gauge extended inverse seesaw mechanism. We embed the model in a non-supersymmetric $SO(10)$ GUT with a purpose of quantifying the results due to the condition $g_{L} \neq g_{R}$. We compare the predicted numerical values of half life of $0\nu\beta\beta$ decay, effective Majorana mass parameter and other lepton number violating parameters 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 how different contributions to $0\nu\beta\beta$ decay are suppressed or enhanced depending upon the values of the ratio $\frac{g_R}{g_L}$ that are predicted from successful gauge coupling unification.

Primary author

Supriya Senapati (Indian Institute of Technology, Bombay)


Mr Chayan Majumdar (Indian Institute of Technology, Bombay) Dr Prativa Pritimita (Indian Institute of Technology, Bombay) Dr Sudhanwa Patra (Indian Institute of Technology, Bhilai)

Presentation materials