STUDIES OF NEUTRINO OSCILLATIONS, NEUTRINO LESS DOUBLE-BETA DECAY, AND THEIR IMPLICATIONS FOR PARTICLE PHYSICS AND COSMOLOGY

Abstract

Neutrinos, the elusive and nearly massless elementary particles, have been subjects of extensive research in the fields of particle physics and cosmology. This abstract summarizes the key findings and implications of studies related to neutrino oscillations and neutrino less double-beta decay. Neutrino oscillations, which were first experimentally confirmed in the late 20th century, have fundamentally changed our understanding of neutrinos. These oscillations reveal that neutrinos have non-zero masses and mix among three distinct flavors (electron, muon, and tau). This discovery has far-reaching consequences for the Standard Model of particle physics, as it implies the existence of physics beyond the currently accepted framework. Neutrino oscillations have provided crucial constraints on the mass differences between neutrino flavors and the magnitudes of their mixing angles, shedding light on the nature of neutrino masses and potentially introducing new physics phenomena.