### 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 (E_{x} 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 ^{12}C 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 |

巻 | 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 2014 → 5 30 2014 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Physics and Astronomy(all)

### これを引用

^{+}resonances above the 0

^{+}

_{2}Hoyle state in

^{12}C - A new analysis with complex-scaled 3α OCM - A n.

*Journal of Physics: Conference Series*,

*569*(1), [012070]. https://doi.org/10.1088/1742-6596/569/1/012070

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

研究成果: ジャーナルへの寄稿 › Conference article

^{+}resonances above the 0

^{+}

_{2}Hoyle state in

^{12}C - A new analysis with complex-scaled 3α OCM - A n',

*Journal of Physics: Conference Series*, 巻. 569, 番号 1, 012070. https://doi.org/10.1088/1742-6596/569/1/012070

^{+}resonances above the 0

^{+}

_{2}Hoyle state in

^{12}C - A new analysis with complex-scaled 3α OCM - A n. Journal of Physics: Conference Series. 2014 1 1;569(1). 012070. https://doi.org/10.1088/1742-6596/569/1/012070

}

TY - JOUR

T1 - 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

AU - Ohtsubo, S.

AU - Fukushima, Y.

AU - Kamimura, M.

AU - Hiyama, E.

PY - 2014/1/1

Y1 - 2014/1/1

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.

UR - http://www.scopus.com/inward/record.url?scp=84919459705&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84919459705&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/569/1/012070

DO - 10.1088/1742-6596/569/1/012070

M3 - Conference article

AN - SCOPUS:84919459705

VL - 569

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012070

ER -