Results 11 to 20 of about 26,224 (151)
We review the recent developments in the field of nuclear double beta decay, which is presently an important topic in both nuclear and particle physics. The mechanism of lepton number violation within the neutrinoless double beta decay is discussed in context of the problem of neutrino mixing and the R-parity violating supersymmetric extensions of the ...
Faessler, Amand, Simkovic, Fedor
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Dark Matter Investigation Using Double Beta Decay Experiments
Nuclei that are unstable with respect to double beta decay are potentially interesting for a novel Dark Matter (DM) direct detection approach. In particular, a Majorana DM fermion inelastically scattering on a double beta unstable nucleus could stimulate
Francesco Nozzoli, Cinzia Cernetti
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Flavored neutrinoless double beta decay [PDF]
We discuss a mechanism of neutrinoless double beta decay, where neutrinos of different flavours come into play. This is realized by effective flavour-violating scalar interactions. As one consequence, we find that within the normal mass ordering the neutrino effective mass may no longer vanish due to contributions from other flavours.
Lukas Graf +4 more
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Double beta decay of 150Nd to the first excited 0+ level of 150Sm: Preliminary results [PDF]
The double beta decay of 150Nd to the first excited 0+ level of 150Sm (Eexc = 740.5 keV) was investigated with the help of the ultra-low-background setup consisting of four HP Ge (high-purity germanium) detectors (≃225 cm3 volume each one) at ...
A. S. Barabash +18 more
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Double beta decay experiments [PDF]
The present status of double beta decay experiments are reviewed. The results of the most sensitive experiments, NEMO-3 and CUORICINO, are discussed. Proposals for future double beta decay experiments are considered. In these experiments sensitivity for the effective neutrino mass will be on the level of (0.1-0.01) eV.
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Cosmogenic Activation in Double Beta Decay Experiments
Double beta decay is a very rare nuclear process and, therefore, experiments intended to detect it must be operated deep underground and in ultra-low background conditions. Long-lived radioisotopes produced by the previous exposure of materials to cosmic
Susana Cebrián
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Neutrinoless Double Beta Decay [PDF]
Lecture notes at TASI2006, Boulder, CO, June 2006; to be published in ...
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Neutrinoless Double Beta Decay [PDF]
Proceedings Lepton-Photon 2011 Conference, to appear in Pramana, 10 ...
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The double β decay is investigated by the use of the relativistic Coulomb wave function including the finite nuclear size effect. A general form of the V±A interactions is considered. It is shown that the decay rate is enhanced considerably in comparison with the case of the plane wave multiplied by the non-relativistic Fermi factor.
M. Doi +3 more
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I review the subject of double beta decay with emphasis upon its implications for the neutrino. It is shown that even if right-handed currents provide the phenomenological mechanism for no-neutrino decay, the fundamental mechanism underlying the process must be neutrino mass.
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