New Treatment of Resonances with a Bound State Approximation Using a Pseudo-Potential(Nuclear Physics)

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概要

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• We propose a new approach to extract the wave functions of resonances with the bound state approximation, which gives mixed states of the resonance components and continuum components. In our approach, on the basis of the method of analytic continuation in the coupling constant (ACCC), we construct a Pade rational function by adopting positive energies, as well as negative ones. We report the result obtained with the application of this new method to the second 2^+ state of ^<12>C, which was studied with the ACCC method in our previous work. It is found that the resonance parameters obtained using the ACCC method are reproduced accurately with the new method. Some advantages over the ACCC method are also discussed.

• 理論物理学刊行会の論文
• 2006-01-25

著者

• 堀内 昶

  Research Center For Nuclear Physics Osaka University:international Institute For Advanced Studies

• 堀内 昶

  京大・基研

• HORIUCHI Hisashi

  Department of Physics, Kyoto University

• Tohsaki Akihiro

  Department Of Fine Materials Engineering:(present Address)suzuki Corporation

• Funaki Yasuro

  Nishina Center For Accelerator-based Science The Institute Of Physical And Chemical Research (riken)

• FUNAKI Yasuro

  Department of Physics, Kyoto University

• TOHSAKI Akihiro

  Suzuki Corporation

• Horiuchi Hisashi

  Department Of Physics Kyoto University

• TOHSAKI Akihiro

  Physique Nucleaire Theorique et Physique Mathematique Universite Libre de Bruxelles:Department of Physics, University of Oxford

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