A solution to the old puzzle of 0+ resonances above the 0+2 Hoyle state in 12C - A new analysis with complex-scaled 3α OCM - A n

S. Ohtsubo, Y. Fukushima, M. Kamimura, E. Hiyama

研究成果: ジャーナルへの寄稿Conference article

1 引用 (Scopus)

抄録

We have developed the complex-scaling method (CSM) by using the complex-range (or oscillating) Gaussian basis functions that are suited for describing highly oscillating few-body wave functions. The eigenvalue distribution of the complex scaled Hamiltonian becomes much more precise and the maximum scaling angle becomes drastically larger than those given by the use of real-range Gaussians. Owing to this advantage, we were able to isolate the S-matrix pole of the new broad 0+3 resonance from the 3α continuum. This confirms the Kurokawa-Kato's prediction (2005) of the new 0+3 resonance, which is considered to correspond to the newly observed 0+3 resonance (Ex 9.04 MeV, Γ 1.45 MeV) by Itoh et al. (2013). As a result the long-standing puzzle for the 0+ and 2+ resonances above the 0+ Hoyle state in 12C was solved. In this paper, the negative parity resonances with J 1-, 2-, 3-, 4- and 5- are newly calculated.

元の言語英語
記事番号012070
ジャーナルJournal of Physics: Conference Series
569
発行部数1
DOI
出版物ステータス出版済み - 1 1 2014
イベント3rd International Workshop on State of the Art in Nuclear Cluster Physics, SOTANCP 2014 - Yokohama, 日本
継続期間: 5 26 20145 30 2014

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scaling
parity
eigenvalues
poles
wave functions
continuums
matrices
predictions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

A solution to the old puzzle of 0+ resonances above the 0+2 Hoyle state in 12C - A new analysis with complex-scaled 3α OCM - A n. / Ohtsubo, S.; Fukushima, Y.; Kamimura, M.; Hiyama, E.

:: Journal of Physics: Conference Series, 巻 569, 番号 1, 012070, 01.01.2014.

研究成果: ジャーナルへの寄稿Conference article

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abstract = "We have developed the complex-scaling method (CSM) by using the complex-range (or oscillating) Gaussian basis functions that are suited for describing highly oscillating few-body wave functions. The eigenvalue distribution of the complex scaled Hamiltonian becomes much more precise and the maximum scaling angle becomes drastically larger than those given by the use of real-range Gaussians. Owing to this advantage, we were able to isolate the S-matrix pole of the new broad 0+3 resonance from the 3α continuum. This confirms the Kurokawa-Kato's prediction (2005) of the new 0+3 resonance, which is considered to correspond to the newly observed 0+3 resonance (Ex 9.04 MeV, Γ 1.45 MeV) by Itoh et al. (2013). As a result the long-standing puzzle for the 0+ and 2+ resonances above the 0+ Hoyle state in 12C was solved. In this paper, the negative parity resonances with J 1-, 2-, 3-, 4- and 5- are newly calculated.",
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N2 - We have developed the complex-scaling method (CSM) by using the complex-range (or oscillating) Gaussian basis functions that are suited for describing highly oscillating few-body wave functions. The eigenvalue distribution of the complex scaled Hamiltonian becomes much more precise and the maximum scaling angle becomes drastically larger than those given by the use of real-range Gaussians. Owing to this advantage, we were able to isolate the S-matrix pole of the new broad 0+3 resonance from the 3α continuum. This confirms the Kurokawa-Kato's prediction (2005) of the new 0+3 resonance, which is considered to correspond to the newly observed 0+3 resonance (Ex 9.04 MeV, Γ 1.45 MeV) by Itoh et al. (2013). As a result the long-standing puzzle for the 0+ and 2+ resonances above the 0+ Hoyle state in 12C was solved. In this paper, the negative parity resonances with J 1-, 2-, 3-, 4- and 5- are newly calculated.

AB - We have developed the complex-scaling method (CSM) by using the complex-range (or oscillating) Gaussian basis functions that are suited for describing highly oscillating few-body wave functions. The eigenvalue distribution of the complex scaled Hamiltonian becomes much more precise and the maximum scaling angle becomes drastically larger than those given by the use of real-range Gaussians. Owing to this advantage, we were able to isolate the S-matrix pole of the new broad 0+3 resonance from the 3α continuum. This confirms the Kurokawa-Kato's prediction (2005) of the new 0+3 resonance, which is considered to correspond to the newly observed 0+3 resonance (Ex 9.04 MeV, Γ 1.45 MeV) by Itoh et al. (2013). As a result the long-standing puzzle for the 0+ and 2+ resonances above the 0+ Hoyle state in 12C was solved. In this paper, the negative parity resonances with J 1-, 2-, 3-, 4- and 5- are newly calculated.

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