Neutrino Oscillations in Intermediate States.II : Wave Packets(Particles and Fields)

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概要

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• We analyze oscillations of intermediate neutrinos in terms of the scattering of particles described by Gaussian wave packets. We study a scalar model as in a previous paper (I) but in realistic situations, where the two particles of the initial state and final state are wave packets and neutrinos are in the intermediate state. The oscillation of the intermediate neutrino is found from the time evolution of the total transition probability between the initial state and final state. The effect of a finite lifetime and a finite relaxation time are also studied. We find that the oscillation pattern depends on the magnitude of wave packet sizes of particles in the initial state and final state and the lifetime of the initial particle. For △m^2_<21>=3×10^<-2> eV^2, the oscillation probability deviates from that of the standard formula if the wave packet sizes are around 10^<-13>m for 0.4MeV neutrino.

• 理論物理学刊行会の論文
• 2005-02-25

著者

• Shimomura Takashi

  Department Of Physics Faculty Of Science Hokkaido University

• Ishikawa Kenzo

  Deparment Of Physics Hokkaido University

• Ishikawa Kenzo

  Department Of Physics Faculty Of Science Hokkaido University

• Shimomura Takashi

  Departament De Fisica Teorica And Ific Universitat De Valencia-csic

• ASAHARA Akinori

  Department of Physics, Faculty of Science, Hokkaido University

• YABUKI Tetsuo

  Rakuno Gakuen University

• Asahara Akinori

  Department Of Physics Faculty Of Science Hokkaido University

• Yabuki T

  Rakuno Gakuen Univ. Ebetsu Jpn

• Yabuki Tetsuo

  Faculty Of Environment Systems Rakuno Gakuen University

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