Double Beta Decay and Majorana Neutrino

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概要

• 論文の詳細を見る

• This review consists of three parts: Various properties of the quantized neutrino fields are summarized in part I from the viewpoint that a Dirac neutrino consists of two Majorana neutrinos with a degenerate mass but with opposite CP signs. It is shown why the Dirac neutrino has a freedom of the phase transformation to guarantee the lepton number conservation, while the Majorana neutrino does not. Part II is devoted to the theoretical investigation of the double beta decay and the analysis on the experimental data. Various corrections due to the vanishing terms in the closure approximation and the higher spherical waves of leptons are estimated. The constraints on the effective neutrino mass and the effective right-handed weak interaction parameters are derived from the present experimental data. In part III, the above bounds are compared with those from other processes like the ^<3>H decay, the neutrino oscillation, the π-μ-e decay, etc. The possible mixing schemes of the neutrino system are explored.

• 理論物理学刊行会の論文
• 1986-03-15

著者

• Doi M

  Osaka University Of Pharmaceutical Sciences

• Takasugi E

  Osaka Univ.

• Doi Masaru

  Osaka University Of Pharmaceutical Sciences

• Doi Masaru

  Osaka College Of Pharmacy

• KOTANI Tsuneyuki

  Institute of Physics, College of General Education

• TAKASUGI Eiichi

  Institute of Physics, College of General Education

• Doi M

  Department Of Computational Science And Engineering Nagoya University

• Takasugi Eiichi

  Institute Of Physics College Of General Education Osaka University

• Kotani Tsuneyuki

  Institute Of Mathematical Sciences : Department Of Physics Tokyo Metropolitan University

• TAKASUGI Eiichi

  Department of Physics, Osaka University:Department of Physics, Hokkaido University

• TAKASUGI Eiichi

  Institute of Physics, College of General Education, Osaka University

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