The discovery of neutrinoless β β decay could soon be within reach. This hypothetical
ultrarare nuclear decay offers a privileged portal to physics beyond the standard model of …

Neutrinoless double-beta decay is a forbidden, lepton-number-violating nuclear transition
whose observation would have fundamental implications for neutrino physics, theories …

We present an improved search for neutrinoless double-beta (0 ν β β) decay of Xe 136 in the
KamLAND-Zen experiment. Owing to purification of the xenon-loaded liquid scintillator, we …

The KamLAND-Zen experiment has provided stringent constraints on the neutrinoless
double-beta (0 ν β β) decay half-life in Xe 136 using a xenon-loaded liquid scintillator. We …

Ettore Majorana (1906–1938) disappeared while traveling by ship from Palermo to Naples
in 1938. His fate has never been fully resolved and several articles have been written that …

The discovery of neutrino masses through the observation of oscillations boosted the
importance of neutrinoless double beta decay (0νββ). In this paper, we review the main …

We review the collider phenomenology of neutrino physics and the synergetic aspects at
energy, intensity and cosmic frontiers to test the new physics behind the neutrino mass …

Neutrinoless double beta decay is a process that violates lepton number conservation. It
is<? format?> predicted to occur in extensions of the standard model of particle physics. This …

Many extensions of the standard model of particle physics suggest that neutrinos should be
Majorana-type fermions—that is, that neutrinos are their own anti-particles—but this …

A review is given of the theory and phenomenology of neutrino electromagnetic interactions,
which provide powerful tools to probe the physics beyond the standard model. After a …