Fluctuation of the Strength Function (原子核の複雑さと散逸)

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概要

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• We consider a single state stochastically coupled to its stochastic background states. The fluctuation of the strength function of the single state is systematically studied for the first time. We find that the upper and lower deviations of the strength function only depend on the ratio of the spreading width over the decay width of the single state and on the ratio of the common decay width over the mean level spacing of the background states. Based on two fit formulae for the upper and lower deviations the uncertainties of the full width at half maximum (FWHM) and lifetime of a single state are estimated. They predict the experimental error bars of the FWHM and lifetime. A comparison of the uncertainties with the experimental error bars is made for nuclear giant dipole resonance, which illuminates our theoretical predictions.

• 素粒子論グループ 素粒子研究編集部の論文
• 2003-11-20

著者

• Gu Jianzhong

  Department Of Physics Graduate School Of Science Kyoto University

関連論文

• Fluctuation of the Strength Function (原子核の複雑さと散逸)

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