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The nuclear beta decay revealed the existence of neutrino more than eight decades ago, but the
neutrino still continues to be a puzzle waiting to be unravelled. The mass and nature of neutrinos
play an important role in physics beyond the standard model. At present, neutrinoless double beta
decay (NDBD) is perhaps the only experiment that can tell us whether or not the neutrino is its own
antiparticle. Given the significance of the NDBD, there is a widespread interest worldwide
employing a variety of novel techniques. This talk will present a brief report of ongoing and
proposed NDBD experiments and will highlight Indian efforts towards the feasibility study of search
for NDBD in 124Sn. |