Evidence for Neutrino Mass: A Decade of Discovery

TL;DR

Recent experimental evidence from multiple neutrino experiments confirms neutrinos have mass and mix, leading to revisions in the Standard Model and ongoing searches for neutrinoless double-beta decay.

Contribution

This paper reviews a decade of experimental discoveries providing strong evidence for neutrino mass and mixing, highlighting the need to revise the Standard Model.

Findings

Neutrino oscillations confirmed by Super-Kamiokande, SNO, and KamLAND.

Solar neutrino problem resolved through neutrino mixing.

Limits on neutrino mass from neutrinoless double-beta decay searches.

Abstract

Neutrino mass and mixing are amongst the major discoveries of recent years. From the observation of flavor change in solar and atmospheric neutrino experiments to the measurements of neutrino mixing with terrestrial neutrinos, recent experiments have provided consistent and compelling evidence for the mixing of massive neutrinos. The discoveries at Super-Kamiokande, SNO, and KamLAND have solved the long-standing solar neutrino problem and demand that we make the first significant revision of the Standard Model in decades. Searches for neutrinoless double-beta decay probe the particle nature of neutrinos and continue to place limits on the effective mass of the neutrino. Possible signs of neutrinoless double-beta decay will stimulate neutrino mass searches in the next decade and beyond. I review the recent discoveries in neutrino physics and the current evidence for massive neutrinos.