Neutrino Spectroscopy with atoms

Research output: Contribution to journalArticle

Abstract

In this paper, two atomic processes, neutrino-less double electron capture (0νεε) and radiative emission of neutrino pair (RENP), are described. The 0νεε process has the same physics objective as the neutrino-less double beta-decay, and thus its observation proves non-conservation of the total lepton number and the rate measurement would provide information on the effective neutrino mass. The RENP process is sensitive to the neutrino absolute mass scale, the mass hierarchy pattern, the mass type (Majorana or Dirac), and the CP violating phases. Its key idea is to amplify otherwise small rates of |e〉→|g〉+γ+νiνj (with νi, νj mass eigenstates), by developing the macro-coherent medium polarization among target atoms strongly coupled to fields inside the medium. Experiments using these two processes are now being planned to reveal nature of neutrinos.

Original languageEnglish
Pages (from-to)313-318
Number of pages6
JournalNuclear Physics B - Proceedings Supplements
Volume235-236
DOIs
Publication statusPublished - Feb 2013

Fingerprint

neutrinos
spectroscopy
atoms
electron capture
hierarchies
leptons
eigenvectors
physics
decay
polarization

Keywords

  • CP phases
  • Macro-coherence
  • Majorana
  • Neutrino mass

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics

Cite this

Neutrino Spectroscopy with atoms. / Sasao, Noboru.

In: Nuclear Physics B - Proceedings Supplements, Vol. 235-236, 02.2013, p. 313-318.

Research output: Contribution to journalArticle

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