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|Title:||Mass of the neutrino|
|Keywords:||Neutrino;Special theory of relativity;Neutrinoless double beta decay;Dirac equation|
|Abstract:||In the standard model (SM) of particle physics, neutrinos are massless and neutral spin ½ particles. But from recent experiments, it is found that neutrinos undergo flavour oscillations, violating lepton flavour conservation which implies that neutrinos have non-zero mass. The absolute scale of neutrino masses is very important for understanding the evolution and the structure formation of the Universe as well as for nuclear and particle physics beyond the present standard model. In this review article, first we have tried to put some logical arguments to support that neutrinos have mass. Then various ways of determining the neutrino masses are briefly discussed and their sensitivities are compared. Neutrino mass is a window for new physics beyond the SM.|
|ISSN:||0975-1041 (Online); 0019-5596 (Print)|
|Appears in Collections:||IJPAP Vol.48(10) [October 2010]|
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