Pion spectra for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo>(</mml:mo><mml:mi>p</mml:mi><mml:mo>,</mml:mo><mml:mrow><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mi>−</mml:mi></mml:mrow></mml:msup></mml:mrow><mml:mo>)</mml:mo></mml:math>reactions in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>88</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">Sr</mml:mi></mml:math>region
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説明
We have calculated the pion spectra of $(p,{\ensuremath{\pi}}^{\ensuremath{-}})$ reactions from near threshold to the $\ensuremath{\Delta}$ region for medium-heavy nuclei with the zero-range plane-wave approximation supplemented with the cutoff of a radial integral simulating the distortion effect. The shell-model wave function with a ${1p}_{1/2}\ensuremath{-}{0g}_{9/2}$ configuration is used to calculate the two-particle one-hole spectroscopic amplitudes. The excitation spectra leading to both the positive- and the negative-parity states are calculated for ${}^{88}\mathrm{Sr},$ ${}^{90}\mathrm{Zr},$ and ${}^{92}\mathrm{Mo}$ nuclei. The present model calculation predicts pronounced selectivity of the excitation of several high-spin states, especially at higher incident energies.
収録刊行物
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- Physical Review C
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Physical Review C 61 2000-01-18
American Physical Society (APS)