Cluster correlation in unstable neutron-rich nuclei probed by a new active target system

• Project/Area Number: 23340068
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Kyoto University
• Principal Investigator: KAWABATA Takahiro 京都大学, 理学(系)研究科(研究院), 准教授 (80359645)
• Co-Investigator(Kenkyū-buntansha): TANIHATA Isao 大阪大学, 核物理研究センター, 特任教授 (10089873) ; ONG Hooijin 大阪大学, 核物理研究センター, 特任講師 (80462670)
• Co-Investigator(Renkei-kenkyūsha): TANIMORI Toru 京都大学, 大学院理学研究科, 教授 (10179856) ; EN'YO Yoshiko 京都大学, 大学院理学研究科, 准教授 (40300678) ; TANIMORI Toru 関西大学, システム理工学部, 准教授 (30396600)
• Research Collaborator: ADACHI Satoshi 大阪大学, 核物理研究センター, 教務補佐員 ; WATANABE Hidetomo 京都大学, 大学院理学研究科 ; FURUNO Tatsuya 京都大学, 大学院理学研究科 ; MURATA Motoki 京都大学, 大学院理学研究科 ; TSUMURA Miho 京都大学, 大学院理学研究科 ; ISHII Yuki 京都大学, 大学院理学研究科
• Project Period (FY): 2011-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000); Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2012: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2011: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
• Keywords: アクティブ標的 / アルファ非弾性散乱 / クラスター構造 / マイクロピクセルチェンバー / 中性子過剰核 / MAIKo

Outline of Final Research Achievements

An active target system with a micro pixel chamber was developed and a performance test was carried out using an accelerated beam. Three-dimensional trajectories of incident, scattered and recoil particles in the 4He + 4He elasctic scattering were successfully measured. The first measurement using a radioactive beam will be done in FY2015 to clarify cluster correlations in neutron-rich nuclei.

Research Products

• [Journal Article] Missing monopole strength of the Hoyle state in the alpha inelastic scattering (2014)
  • Author(s): T. Kawabata, T. Kadoya, N. Yokota, S. Adachi, T. Baba, T. Furuno, H. Fujimura, M. Fujiwara, K. Hatanaka, Y. Ishii, M. Itoh, T. Ito, Y. Maeda, Y. Matsuda, M. Murata, T. Sato, A. Tamii, M. Tsumura, H. Watanabe, and J. Zenihiro
  • Journal Title: J. Phys.: Conf. Ser. Volume: 569 Pages: 012014-012014
  • DOI: 10.1088/1742-6596/569/1/012014
  • Peer Reviewed / Open Access
• [Journal Article] Development of MAIKo: the active target with μ-PIC for RI beam experiments (2014)
  • Author(s): T. Furuno et al.
  • Journal Title: Journal of Physics: Conference Series Volume: 569 Pages: 012042-012042
  • DOI: 10.1088/1742-6596/569/1/012042
  • Peer Reviewed / Open Access
• [Journal Article] α-resonance structure in 11C studied via resonant scattering of 7Be+α and with the 7Be(α,p) reaction (2013)
  • Author(s): H. Yamaguch, D. Kahl, Y. Wakabayashi, S. Kubono, T. Hashimoto, S. Hayakawa, T. Kawabata, N. Iwasa , T. Teranishi, Y. K. Kwon, D. N. Binh, L. H. Khiem, and N. N. Duy
  • Journal Title: Phys. Rev. C Volume: 87 Issue: 3 Pages: 034303-034303
  • DOI: 10.1103/physrevc.87.034303
  • Peer Reviewed
• [Journal Article] Isoscalar giant resonance strengths in 32S and possible excitation of superdeformed and 28Si + α cluster bandheads (2013)
  • Author(s): M. Itoh, S. Kishi, H. Sakaguchi, H. Akimune, M. Fujiwara, U. Garg, K. Hara, H. Hashimoto, J. Hoffman, T. Kawabata, K. Kawase, T. Murakami, K. Nakanishi, B. K. Nayak, S. Terashima, M. Uchida, Y. Yasuda, and M. Yosoi
  • Journal Title: Phys. Rev. C Volume: 88 Issue: 6 Pages: 064313-064313
  • DOI: 10.1103/physrevc.88.064313
  • Peer Reviewed
• [Journal Article] Search for alpha condensed state in 24Mg (2013)
  • Author(s): T. Kawabata, T. Adachi, M. Fujiwara, K. Hatanaka, Y. Ishiguro, M. Itoh, Y. Maeda, H. Matsubara, H. Miyasako, Y. Nozawa, T. Saito, S. Sakaguchi, Y. Sasamoto, Y. Shimizu, T. Takahashi, A. Tamii, S. Terashima, H. Tokieda, N. Tomida, T. Uesaka, M. Uchida, Y. Yasuda, N. Yokota, H. P. Yoshida, and J. Zenihiro
  • Journal Title: Few body systems Volume: 54 Issue: 1-4 Pages: 93-97
  • DOI: 10.1007/s00601-012-0333-2
  • NAID: 210000129155
  • Peer Reviewed
• [Journal Article] Gas-like state of alpha clusters around a 16O core in 24Mg (2011)
  • Author(s): T. Ichikawa, N. Itagaki, T. Kawabata, Tz. Kokalova, and W. von Oertzen
  • Journal Title: Physical Review C Volume: 83 Issue: 6 Pages: 61301-61301
  • DOI: 10.1103/physrevc.83.061301
  • Peer Reviewed
• [Journal Article] Candidate for the 2+ excited Hoyle state at Ex~10 MeV in 12C (2011)
  • Author(s): M. Itoh, T. Kawabata, et al.
  • Journal Title: Physical Reivew C Volume: 84 Issue: 5 Pages: 54308-54308
  • DOI: 10.1103/physrevc.84.054308
  • Peer Reviewed
• [Journal Article] Search for alpha condensed state in 24Mg (2011)
  • Author(s): T. Kawabata et al.
  • Journal Title: Journal of Physics: Conference Series Volume: 321 Pages: 12012-12012
  • DOI: 10.1088/1742-6596/321/1/012012
  • NAID: 210000129155
• [Presentation] Development of MAIKo: the active target with μ-PIC for RI beam experiments (2014)
  • Author(s): T. Furuno
  • Organizer: Fourth Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (HAWAII 2014)
  • Place of Presentation: Hiliton Waikoloa Village, Hawaii, USA
  • Year and Date: 2014-10-07 – 2014-10-11
• [Presentation] Development of MAIKo with GEM (2014)
  • Author(s): M. Murata
  • Organizer: Fourth Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (HAWAII 2014)
  • Place of Presentation: Hiliton Waikoloa Village, Hawaii, USA
  • Year and Date: 2014-10-07 – 2014-10-11
• [Presentation] Development of MAIKo: the active target with μ-PIC for RI beam experiments (2014)
  • Author(s): T. Furuno
  • Organizer: 3rd International Workshop on State of the Art in Nuclear Cluster Physics (SOTANCP3)
  • Place of Presentation: Kanto Gakuin University
  • Year and Date: 2014-05-26 – 2014-05-30
• [Presentation] μ-PICを用いたアクテイブ標的開発の性能評価 (2014)
  • Author(s): 古野達也
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学
  • Year and Date: 2014-03-26 – 2014-03-30
• [Presentation] μ-PICを用いた不安定核実験のためのアクテイブ標的開発 (2013)
  • Author(s): 古野達也
  • Organizer: 第10回MPGD研究会
  • Place of Presentation: 京都大学
  • Year and Date: 2013-12-14
• [Presentation] μ-PICを用いた不安定核実験のためのアクテイブ標的開発 (2013)
  • Author(s): 古野達也
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 高知大学
  • Year and Date: 2013-09-20 – 2013-09-23
• [Presentation] Alpha inelastic scattering and cluster structures in neutron-rich nuclei (2012)
  • Author(s): T. Kawabata
  • Organizer: RIKEN-RIBF mini workshop
  • Place of Presentation: RIKEN, Wako, Saitama, Japan
• [Presentation] Cluster structures probed by inelastic scattering (2012)
  • Author(s): T. Kawabata
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 京都産業大学
• [Presentation] Seach for alpha condensed state in 24Mg (2012)
  • Author(s): T. Kawabata
  • Organizer: 10th International conference on clustering aspects of nuclear structure and dyanmics (CLUSTER12)
  • Place of Presentation: ATOMK, Hungary
  • Invited
• [Presentation] Alpha inelastic scattering and cluster structures in light nuclei (2012)
  • Author(s): T. Kawabata
  • Organizer: International workshop on nuclear spectroscopy frontiers at magnetic spectrometer
  • Place of Presentation: Stellenbosch Institute for Advanced Studies, Stellenbosch, South Africa
  • Invited
• [Presentation] Cluster correlation probed by direct nuclear reactions (2012)
  • Author(s): T. Kawabata
  • Organizer: RCNP mini Workshop on Experimental Approach to Cluster Structures in Nuclei
  • Place of Presentation: Ibaraki, Osaka, Japan
• [Presentation] Search for Alpha Condensed State in 24Mg (2011)
  • Author(s): T. Kawabata
  • Organizer: The 5th Asia-Pacific Conference on Few-Body Problems in Physics
  • Place of Presentation: Seoul, Republic of Korea
  • Invited
• [Presentation] Search for Alpha Condensed State in 24Mg (2011)
  • Author(s): T. Kawabata
  • Organizer: International Symposium on Frontier Issues in Physics of Exotic Nuclei
  • Place of Presentation: Kyoto, Japan
• [Presentation] Alpha Inelastic Scattering and Cluster Structures in Light Nuclei (2011)
  • Author(s): T. Kawabata
  • Organizer: The 2nd Todai/RIKEN Meeting on Cold Atoms and Nucleon
  • Place of Presentation: Wako, Saitama, Japan
  • Invited