著者

相葉 恵介 五十嵐 明則 島村 勲

出版者

宮崎大学

雑誌

宮崎大學工學部紀要 (ISSN:05404924)

巻号頁・発行日

vol.36, pp.5-9, 2007-08-30

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We have analyzed 1Po resonances for He and Ps- associated with n = 5 thresholds of He+ and Ps by the time-delay ###matrix Q(E). Q-matrix as functions of total energy E is constructed from scattering matrix obtained by scattering ###calculation. The eigenvalues {qi(E)} of Q-matrix are quite useful to identify resonances in the energy region where ###some resonances overlap and where the eigenphase sum δ(E) and its energy-derivative dδ/dE do not provide enough ###information. Some overlappling resonances are appeared by examination of the eigenvalues {qi(E)} for He and many ###new resonances are found for Ps-.