Sterile Neutrinos in a Grand Unified Model : Particles and Fields

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概要

• 論文の詳細を見る

• Recent experimental results indicating the existence of neutrino oscillations may strongly suggest that at least one more light neutrino species is required in order to reconcile the existing data. In simple GUT frameworks, this fact seems not to preserve the parallelism between quarks and leptons. In this paper, we investigate an SO(10) grand unified model with a pair of extra generations in addition to the known three generations. Using the GUT relations, the obtained neutrino mass matrix naturally indicates that one of the SU(2)_L singlet (sterile) neutrinos is very light and has a large mixing with the muon neutrino. This can explain the atmospheric neutrino anomaly, and the existence of the hot dark matter neutrino is also indicated. The solar neutrino problem can be solved by considering the mixing with the muon neutrino consistently with quark mixing, namely, the Cabibbo angle.

• 理論物理学刊行会の論文
• 1998-12-25

著者

• BANDO Masako

  Aichi University

• YOSHIOKA Koichi

  Department of Physics, Kyoto University

• Yoshioka Koichi

  Department Of Physics Kyoto University

• Yoshioka Koichi

  Department Of Biochemistry And Biophysics Graduate School Of Allied Health Sciences

• Bando Masako

  Aichi Univ. Aichi Jpn

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