Speaker
Description
The study of nuclear weak processes processes play a key role in multiple avenues of searches for physics beyond the standard model. The search for the rare neutrinoless double β-decay(0νββ) and exotic dark matter in nuclear laboratory-scale experiments is among such searches that aim to answer foundational questions in physics. In the searches for exotic dark matter, unknown, rare forbidden electron-capture decay can appear as an irreducible internal background. Therefore, giving theoretical estimates for branching ratios of such unknown decays is of utmost importance in experimental confirmation of the detection of exotic dark matter. On the 0νββ decay front, understanding the phenomenology of effective axial vector coupling (g_A^eff) in nuclear weak processes in general, and β-decays in particular, is key for determining the sensitivity of underground experiments designed to detect this rare decay. In addition to this, investigating the connection between 0νββ decay amplitudes and Ordinary Muon Capture (OMC) rates can be a window to interesting new physics. The talk aims to walk through these novel facets of physics that lie at the forefront of nuclear weak-interaction physics.