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pi-Mesonic decay of hypernuclei and pion wavefunction |
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| Authors: | K. Itonaga T. Motoba H. Bandō |
| Affiliation: | 1. Department of Applied Mathematics, Osaka University, Toyonaka, Osaka, Japan 2. Laboratory of Physics, Osaka Electro-Communication University, Neyagawa, Osaka, Japan 3. Division of Mathematical Physics, Fukui University, Fukui, Japan |
| Abstract: | The pi-mesonic decay of hypernuclei is studied by using the pion distorted waves which are the solutions of the Klein-Gordon equation with the optical potential. The distortions of the pion waves give rise to significant enhancement of theπ-decay rate compared with the pion free-wave case. Theπ-decay rates are very sensitive to the behavior of the pion wave deep inside the nucleus and therefore to the chosen pion optical potentials. There is a tendency that the enhancement is larger for theπ ?-decay than for theπ 0-decay due to the combined effects of the Coulomb and optical potentials. |
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