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Production of isomeric Al-26 beam and creation mechanism of galactic gamma rays

Research Project

Project/Area Number 16K05369
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionThe University of Tokyo

Principal Investigator

Yamaguchi Hidetoshi  東京大学, 大学院理学系研究科, 講師 (30376529)

Co-Investigator(Kenkyū-buntansha) 早川 勢也  東京大学, 大学院理学系研究科(理学部), 特任助教 (00747743)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords宇宙核物理 / 不安定核 / 宇宙ガンマ線 / 天体核反応 / 核異性体 / 水素燃焼 / RIビーム
Outline of Final Research Achievements

The 1.8-MeV gamma-rays coming from the center of our galaxy originate from the decay of aluminum-26 nuclei. However, it is still uncertain which stellar sites are responsible for their production, because aluminum-26 has a ground state and an isomeric state and the production/destruction processes are not precisely known.
In this study, isomeric aluminum-26 nuclei, which had been difficult to use in experiments, were produced as a low-energy ion beam. The isomeric beam was applied for a measurement based on the method of proton resonant scattering, and several resonances are discovered. With the observed parameters of these resonances, we will be able to evaluate the destruction reaction of aluminum-26 isomer.

Academic Significance and Societal Importance of the Research Achievements

銀河からのAl-26由来ガンマ線観測は、銀河の中で今まさにどのような元素合成が行われているか、またドップラーシフトによって銀河がどのように運動しているかを理解するための有益な情報である。ところが、現在の観測による銀河のアルミニウム-26の生成量と、各種天体のシミュレーションによる生成量の総計には、大きな食い違いがある。本研究により、Al-26のアイソマービームを生成し、その破壊反応に関する直接的情報が初めて得られた。今後食い違いの解消と銀河の精密な理解に結びつくと期待できる。
また、本研究で確立したアイソマービーム生成技術は、将来工学的応用が可能な技術と考えられる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (46 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (13 results) Journal Article (17 results) (of which Int'l Joint Research: 12 results,  Peer Reviewed: 15 results,  Open Access: 3 results,  Acknowledgement Compliant: 3 results) Presentation (16 results) (of which Int'l Joint Research: 14 results,  Invited: 6 results)

  • [Int'l Joint Research] 成均館大学/梨花女子大学(韓国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] CIAE/Institute of Modern Physics/Beijing Normal Univ.(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] University of Edinburgh(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] INFN/University of Catania(イタリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] McMaster Univ.(カナダ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 成均館大学/IBS/梨花女子大学(韓国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] 北航大学/CIAE/Institute of Modern Physics(中国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of Edinburgh(英国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] INFN(イタリア)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] 成均館大学/IBS/梨花女子大学(韓国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Beihang大学/CIAE(中国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] University of Edinburgh(英国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] INFN/University of Naples(イタリア)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Beam production of ? 18 Ne with in-flight method for alpha scattering at CRIB2018

    • Author(s)
      Duy N.N.、Chae K.Y.、Cha S.M.、Yamaguchi H.、Abe K.、Bae S.H.、Binh D.N.、Choi S.H.、Hahn K.I.、Hayakawa S.、Hong B.、Iwasa N.、Kahl D.、et al.
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 897 Pages: 8-13

    • DOI

      10.1016/j.nima.2018.04.043

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Impact of the 26mAl(p, γ) reaction to galactic 26Al yield2018

    • Author(s)
      Kahl D.、Shimizu H.、Yamaguchi H.、Abe K.、Beliuskina O.、Cha S. M.、Chae K. Y.、Chen A. A.、Ge Z.、Hayakawa S.、Imai N.、Iwasa N.、Kim A.、Kim D. H.、Kim M. J.、Kubono S.、Kwag M. S.、Liang J.、Moon J. Y.、Nishimura S.、Oka S.、Park S. Y.、Psaltis A.、Teranishi T.、Ueno Y.、Yang L.
    • Journal Title

      AIP Conference Proceedings

      Volume: 1947 Pages: 020003-020003

    • DOI

      10.1063/1.5030807

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Indirect studies on astrophysical reactions at the low-energy RI beam separator CRIB2018

    • Author(s)
      Yamaguchi H.、Kahl D.、Hayakawa S.、Yang L.、Shimizu H.、Sakaguchi Y.、Abe K.、Wakabayashi Y.、Hashimoto et al.
    • Journal Title

      AIP Conference Proceedings

      Volume: 1947 Pages: 020022-020022

    • DOI

      10.1063/1.5030826

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurements of the neutron-induced reactions on 7Be with CRIB by the Trojan Horse method2018

    • Author(s)
      Hayakawa S.、Abe K.、Beliuskina O.、Cha S. M.、Chae K. Y.、Cherubini S.、Figuera P.、Ge Z.、Gulino M.、Hu J.、Inoue A.、et al.
    • Journal Title

      AIP Conference Proceedings

      Volume: 1947 Pages: 020011-020011

    • DOI

      10.1063/1.5030815

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct measurements and detection techniques with low-energy RIBs2018

    • Author(s)
      Yamaguchi H.、Hayakawa S.、Yang L.、Shimizu H.、Kahl D.
    • Journal Title

      EPJ Web of Conferences

      Volume: 184 Pages: 01017-01017

    • DOI

      10.1051/epjconf/201818401017

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Isomeric 26Al beam production with CRIB2018

    • Author(s)
      Shimizu H.、Kahl D.、Yamaguchi H.、Abe K.、Beliuskina O.、Cha S. M.、Chae K. Y.、Chen A. A.、Ge Z.、Hayakawa S.、Imai N.、Iwasa N.、Kim A.、Kim D. H.、Kim M. J.、Kubono S.、Kawag M. S.、Liang J.、Moon J. Y.、Nishimura S.、Oka S.、Park S. Y.、Psaltis A.、Teranishi T.、Ueno Y.、Yang L.
    • Journal Title

      EPJ Web of Conferences

      Volume: 184 Pages: 02013-02013

    • DOI

      10.1051/epjconf/201818402013

    • Related Report
      2018 Annual Research Report
  • [Journal Article] First measurement of 30S + α resonant elastic scattering for the 30S(α, p) reaction rate2018

    • Author(s)
      D. Kahl,H. Yamaguchi, S. Kubono, A.A. Chen, A. Parikh, D.N. Binh, J. Chen, S. Cherubini, N. N. Duy, T. Hashimoto S. Hayakawa, N. Iwasa H. S. Jung, S. Kato,Y. K. Kwon S. Nishimura, S. Ota, K. Setoodehnia, T. Teranishi, H. Tokieda, T. Yamada, C. C. Yun and L. Y. Zhang,
    • Journal Title

      Phys. Rev. C

      Volume: 97 Issue: 1 Pages: 015802-015802

    • DOI

      10.1103/physrevc.97.015802

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Experimental Studies of Light-Ion Nuclear Reactions Using Low-Energy RI Beams2017

    • Author(s)
      H. Yamaguchi, D. Kahl, S. Hayakawa, Y. Sakaguchi, K. Abe, H. Shimuzu, Y. Wakabayashi, T. Hashimoto, S. Cherubini, M. Gulino, C. Spitaleri, G. G. Rapisarda, M. La Cognata, L. Lamia, S. Romano, S. Kubono, N. Iwasa, T. Teranishi, T. Kawabata, Y. K. Kwon, D. N. Binh, L. H. Khiem, N. N. Duy, S. Kato, T. Komatsubara, et al.
    • Journal Title

      JPS Conf. Proc.

      Volume: 14

    • DOI

      10.7566/jpscp.14.010503

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 30S(α, p) Thermonuclear Reaction Rate from Experimental Level Structure of 34Ar2017

    • Author(s)
      D. Kahl, A. A. Chen, S. Kubono, H. Yamaguchi, D. N. Binh, J. Chen, S. Cherubini, N. N. Duy, T. Hashimoto, S. Hayakawa, N. Iwasa, H. S. Jung, S. Kato, Y. K. Kwon, S. Nishimura, S. Ota, K. Setoodehnia, T. Teranishi, H. Tokieda, T. Yamada, C. C. Yun, and L. Y. Zhang,
    • Journal Title

      JPS Conf. Proc.

      Volume: 14

    • DOI

      10.7566/jpscp.14.020510

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Study on α-cluster levels in non-4n nuclei using low-energy RI beams2017

    • Author(s)
      H Yamaguchi, D Kahl, S Hayakawa, Y Sakaguchi, K Abe, T Nakao, T Suhara, N Iwasa, A Kim, D H Kim, S M Cha, M S Kwag, J H Lee, E J Lee, K Y Chae, Y Wakabayashi, N Imai, N Kitamura, P Lee, J Y Moon, K B Lee, C Akers, H S Jung, N N Duy, L H Khiem and C S Lee,
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 863 Pages: 012025-012025

    • DOI

      10.1088/1742-6596/863/1/012025

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Isomer beam elastic scattering: 26mAl(p, p) for astrophysics2017

    • Author(s)
      D. Kahl, H. Shimizu, H. Yamaguchi, K. Abe, O. Beliuskina, S. M. Cha, K. Y. Chae, A. A. Chen, Z. Ge, S. Hayakawa, N. Imai, N. Iwasa, A. Kim, D. H. Kim, M. J. Kim, S. Kubono, M. S. Kwag, J. Liang, J. Y. Moon, S. Nishimura, S. Oka, S. Y. Park, A. Psaltis, T. Teranishi, Y. Ueno and L. Yang
    • Journal Title

      EPJ Web Conf.

      Volume: 165

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nuclear astrophysics projects at the low-energy RI beam separator CRIB2017

    • Author(s)
      H. Yamaguchi, D. Kahl, S. Hayakawa, L. Yang, H. Shimizu, Y. Sakaguchi, K. Abe, T. Nakao, T. Suhara, N. Iwasa, A. Kim, D.H. Kim, S.M. Cha, M.S. Kwag, J.H. Lee, E.J. Lee, K.Y. Chae, Y. Wakabayashi, et al.
    • Journal Title

      EPJ Web Conf.

      Volume: 165

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Experimental investigation of linear-chain structured nucleus in 14C2017

    • Author(s)
      H. Yamaguchi, D. Kahl, S. Hayakawa, Y. Sakaguchi, K. Abe, T. Nakao, T. Suhara, N. Iwasa, A. Kim, D.H. Kim, et al.
    • Journal Title

      Phys. Lett. B

      Volume: 766 Pages: 11-16

    • DOI

      10.1016/j.physletb.2016.12.050

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Studying astrophysical reactions with low-energy RI beams at CRIB2016

    • Author(s)
      H. Yamaguchi, D. Kahl, S. Hayakawa, Y. Sakaguchi, Y. Wakabayashi, T. Hashimoto, S. Cherubini, M. Gulino, C. Spitaleri, G.G. Rapisarda, et al.
    • Journal Title

      EPJ Web of Conferences

      Volume: 117 Pages: 09005-09005

    • DOI

      10.1051/epjconf/201611709005

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Overview of the activities at the low-energy beam separator CRIB2016

    • Author(s)
      H. Yamaguchi, D. Kahl, S. Hayakawa, L. Yang, Y. Sakaguchi, K. Abe, H. Shimizu, and CRIB Collaboration
    • Journal Title

      Il Nuovo Cimento

      Volume: 39C

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Explosive destruction of 26Al2016

    • Author(s)
      D. Kahl, H. Yamaguchi, H. Shimizu, K. Abe, O. Beliuskina, S. M. Cha, K.Y. Chae, Z. Ge, S. Hayakawa, M.S. Kwag, D. H. Kim, J. Y. Moon, S.Y. Park, L. Yang
    • Journal Title

      Il Nuovo Cimento

      Volume: 39C

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] First direct measurement of the 11C(α, p)14N stellar reaction by an extended thick-target method2016

    • Author(s)
      S. Hayakawa, S, Kubono, H. Yamaguchi, T. Teranishi et al.
    • Journal Title

      Phys. Rev. C

      Volume: 93 Issue: 6

    • DOI

      10.1103/physrevc.93.065802

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Study on cluster states in unstable nuclei with alpha-resonant scattering2019

    • Author(s)
      H. Yamaguchi
    • Organizer
      RIBF Nuclear Physics Seminar
    • Related Report
      2018 Annual Research Report
  • [Presentation] Study on explosive nuclear synthesis with low-energy RI beams at CRIB'2018

    • Author(s)
      H. Yamaguchi
    • Organizer
      15th International Symposium on Nuclei in the Cosmos
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Activities at the low-energy RI beam separator CRIB2018

    • Author(s)
      H. Yamaguchi
    • Organizer
      RIBF Users Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Indirect method application for RI-beam experiments2018

    • Author(s)
      H. Yamaguchi
    • Organizer
      ECT* Workshop "Indirect Methods in Nuclear Astrophysics''
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Studies on nuclear astrophysics and nuclear clustering with low-energy RI beams at CRIB2018

    • Author(s)
      H. Yamaguchi
    • Organizer
      13th International Conference on Nucleus-Nucleus Collisions (NN2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nuclear astrophysics projects at the low-energy RI beam separator CRIB2017

    • Author(s)
      H. Yamaguchi
    • Organizer
      The 8th Nuclear Physics in Astrophysics International conference (NPA8)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Indirect studies on astrophysical reactions at the low-energy RI beam separator CRIB2017

    • Author(s)
      H. Yamaguchi
    • Organizer
      The 14th International Symposium on Origin of Matter and Evolution of the Galaxies (OMEG2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] α共鳴散乱による不安定核クラスター状態の研究2017

    • Author(s)
      山口英斉
    • Organizer
      RCNP研究会「核子・ストレンジネス多体系におけるクラスター現象」
    • Related Report
      2017 Research-status Report
  • [Presentation] Direct measurements and detection techniques with low-energy RIBs2017

    • Author(s)
      H. Yamaguchi
    • Organizer
      9th European Summer School on Experimental Nuclear Astrophysics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Studying nuclear astrophysics and nuclear clustering at the low-energy RI beam separator CRIB2017

    • Author(s)
      H. Yamaguchi
    • Organizer
      The International Symposium on Physics of Unstable Nuclei 2017 (ISPUN2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Study on alpha-cluster states via resonant scattering with low-energy RI beams2017

    • Author(s)
      H. Yamaguchi
    • Organizer
      Workshop on Nuclear Cluster Physics 2017 (WNCP2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Overview of recent experiments at CRIB2016

    • Author(s)
      H. Yamaguchi
    • Organizer
      SKKU mini workshop
    • Place of Presentation
      Sungkyunkwan University, Suwon (South Korea)
    • Year and Date
      2016-10-11
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Recent activities at the low-energy RI beam separator CRIB2016

    • Author(s)
      H. Yamaguchi
    • Organizer
      RIBF users meeting 2016
    • Place of Presentation
      理化学研究所(埼玉県和光市)
    • Year and Date
      2016-09-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Overview of CRIB projects2016

    • Author(s)
      H. Yamaguchi
    • Organizer
      The Second Sicily-East Asia Workshop on Low Energy Nuclear Physics (SEA2016)
    • Place of Presentation
      東京大学原子核科学研究センター(埼玉県和光市)
    • Year and Date
      2016-06-27
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Experimental studies of light-ion nuclear reactions using low-energy RI beams2016

    • Author(s)
      H. Yamaguchi
    • Organizer
      The 14th International Symposium on Nuclei in the Cosmos (NIC-XIV)
    • Place of Presentation
      朱鷺メッセ(新潟県新潟市)
    • Year and Date
      2016-06-19
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Study on alpha-cluster levels in non-4n nuclei using low-energy RI beams2016

    • Author(s)
      H. Yamaguchi
    • Organizer
      11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics
    • Place of Presentation
      Universita di Napoli Federico II, Napoli (Italy)
    • Year and Date
      2016-05-23
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2022-02-22  

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