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Neutrino is a neutral spin ½ particle, discovered through nuclear beta decay, that interacts only through the weak interaction. It is now well established that neutrinos have mass. The mass and nature of neutrinos play an important role in theories beyond the Standard Model. Whether neutrino is its own antiparticle, as proposed by Majorana, is still an open question. At present, neutrinoless double beta decay (0vββ) is perhaps the only experiment that can reveal the true nature of the neutrinos. Given its significance, there is a widespread interest in the quest for 0vββ employing different techniques. This article presents a brief overview of 0vββ experiments and highlights the indigenous effort to search for 0vββ in 124Sn using a cryogenic bolometer at the India-based Neutrino Observatory.

Keywords

Antiparticle, Cryogenic Bolometer, Double Beta Decay, Neutrino.
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