𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Double beta decay: A problem of particle, nuclear and atomic physics

✍ Scribed by Fedor Šimkovic

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
386 KB
Volume
64
Category
Article
ISSN
0146-6410

No coin nor oath required. For personal study only.

✦ Synopsis

A brief review of recent progress in the field of double beta decay is presented. Different aspects from particle, nuclear and atomic physics of both two-neutrino (2νββ) and neutrinoless (0νββ) modes of the double β decay are discussed. It is argued that the Rparity violating supersymmetry ( R p SUSY) contributes to the 0νββ-decay predominantly via charged pion-exchange between decaying nucleons. Further, a problem of reliable determination of the 0νββ-decay nuclear matrix elements (NMEs) is addressed. It is manifested that the uncertainty associated with the calculation of the 0νββ-decay NMEs can be diminished by suitably chosen nuclear probes. A new possibility for the study of lepton number non-conservation is proposed, namely oscillations plus deexcitations of neutral atoms. A phenomenological analysis of this process leads to a resonant enhancement of the neutrinoless double electron capture, that has a Breit-Wigner form.

📜 SIMILAR VOLUMES

Double beta decay, nuclear structure and
Double beta decay, nuclear structure and physics beyond the standard model
✍ Fedor Šimkovic 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 550 KB

After the discovery of neutrino oscillations, the search for the 0νββ-decay became one of the most fundamental problems of neutrino physics. In this contribution the recent developments in the field of nuclear double beta decay are reviewed. The light Majorana neutrino mass mechanism of the neutrino

Nuclear structure aspects of single and
Nuclear structure aspects of single and double beta decays for neutrino mass
✍ K. Muto; R. Dvornický; F. Šimkovic 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 298 KB

Single β-decay of 187 Re and double β-decay are discussed for probing absolute masses of neutrinos. It is shown that 187 Re decay is dominated by p-wave emission of the electron over s-wave. Double β-decay nuclear matrix elements relevant to the neutrino mass mechanism are discussed in the view poin

MOON for symmetry studies of neutrinos b
MOON for symmetry studies of neutrinos by double beta decays and neutrino nuclear responses
✍ H. Ejiri 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 279 KB

Neutrino-less double beta decays (0νββ) are used for high sensitivity studies of symmetry properties of neutrinos such as the Majorana nature of neutrinos, the absolute mass scale, the CP at the lepton sector, and others. Neutrino nuclear responses (0νββ nuclear matrix elements) are crucial for extr