Study of reaction rate of the rapid neutron capture process in supernovae and neutron star merger

• Project/Area Number: 18H01218
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
• Research Institution: Tohoku University
• Principal Investigator: Iwasa Naohito 東北大学, 理学研究科, 准教授 (50322996)
• Co-Investigator(Kenkyū-buntansha): 久保野 茂 国立研究開発法人理化学研究所, 仁科加速器科学研究センター, 客員主管研究員 (20126048) ; 山口 英斉 東京大学, 大学院理学系研究科(理学部), 講師 (30376529) ; 新倉 潤 東京大学, 大学院理学系研究科(理学部), 助教 (50644720)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000); Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2019: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2018: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
• Keywords: 宇宙核物理 / RIビーム / rプロセス / ストリッピング反応 / 天体核反応 / 原子核実験 / 原子核(実験) / 超新星・中性子星合体 / 低エネルギーRIビーム / r過程 / 超新星・中性子合体での元素合成 / アクティブ標的 / 原子核物理実験 / 超新星・中性子合体の元素合成

Outline of Final Research Achievements

The 130Sn(d,p)131Sn reaction is measured in the inverse kinematics on April 2022 to deduce the 130Sn(n,γ)131Sn reaction rate which is important for a nucleosynthesis network calculation code to make the characteristic peak at the mass number 130 of the rapid neutron capture process(r process) in neutron star merger . The experimental equipment was prepared, and the performance was evaluated by a test experiment. The experiment was performed on 10 days after the study period. Experimental data were taken and the analysis is in progress.

Academic Significance and Societal Importance of the Research Achievements

(d,p)反応は核構造研究に有力な道具であることが知られている。しかし、重い不安定核ビームを用いた逆運動学での測定では十分な励起エネルギー分解能と十分な統計精度を両立させることが難しかった。本研究では、理化学研究所RIビームファクトリーで作られた高輝度の中性子過剰核(130Sn)ビームを使うことで、十分な分解能と統計精度での測定が可能になる。rプロセスの質量数130のピーク周辺のrプロセスの流れについて議論できると期待する。

Research Products

• [Journal Article] Constraining the Primordial Lithium Abundance: New Cross Section Measurement of the ⁷Be + n Reactions Updates the Total 7Be Destruction Rate (2021)
  • Author(s): Hayakawa S.、La Cognata M.、Lamia L.、Yamaguchi H.、Kahl D.、Abe K.、Shimizu H.、Yang L.、Beliuskina et al.,
  • Journal Title: The Astrophysical Journal Letters Volume: 915 Issue: 1 Pages: L13-L13
  • DOI: 10.3847/2041-8213/ac061f
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] β-delayed neutron emission of r-process nuclei at the N=82 shell closure (2021)
  • Author(s): O. Hall, S. Kubono et al.
  • Journal Title: Physics Letters B Volume: 816 Pages: 136266-136266
  • DOI: 10.1016/j.physletb.2021.136266
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] First experimental determination of the radiative-decay probability of the 3－1 state in 12C for estimating the triple alpha reaction rate in high temperature environments (2021)
  • Author(s): M. Tsumura,S. Kubono, et al.
  • Journal Title: Physics Letters B Volume: 817 Pages: 136283-136283
  • DOI: 10.1016/j.physletb.2021.136283
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Persistence of the Z = 28 shell gap in A = 75 isobars: Identification of a possible (1/2-) μs isomer in 75Co and β decay to 75Ni (2021)
  • Author(s): S. Escrig, M. Niikura, S. Kubono et al.
  • Journal Title: Physical Review C Volume: 103 Issue: 6 Pages: 064328-064328
  • DOI: 10.1103/physrevc.103.064328
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Spectroscopy of 98Cd by two-nucleon removal from 100In (2021)
  • Author(s): S. Jin, S. Kubono et al.
  • Journal Title: Physical Review C Volume: 104 Issue: 2 Pages: 024302-024302
  • DOI: 10.1103/physrevc.104.024302
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Advancement of Photospheric Radius Expansion and Clocked Type-I X-Ray Burst Models with the New 22Mg(a,p)25Al Reaction Rate Determined at the Gamow Energy (2021)
  • Author(s): Hu J.、Yamaguchi H.、Lam Y.H.、Heger A.、Kahl D.、Jacobs A.M.、Johnston Z.、Xu S.W.、Zhang N. et al.
  • Journal Title: Physical Review Letters Volume: 127 Issue: 17 Pages: 172701-172701
  • DOI: 10.1103/physrevlett.127.172701
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Experimental study of the Γp1/Γp0 ratios of resonance states in Be8 for deducing the Be7(n,p1)Li*7 reaction rate relevant to the cosmological lithium problem (2021)
  • Author(s): Iwasa N.、Ishikawa S.、Kubono S.、Sakakibara T.、Kominato K.、Nishio K.、Matsuda M.、Hirose K.、Makii H.、Orlandi R.、Asada K.、Guru D.、Nishimura S.、Hayakawa S.、Kawabata T.
  • Journal Title: Physical Review C Volume: 103 Issue: 1 Pages: 015801-015801
  • DOI: 10.1103/physrevc.103.015801
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Energy-control and novel particle-identification methods combined with range in a multi-sampling ionization chamber for experiments using slowed-down RI beams (2021)
  • Author(s): T. Sumikama, S. Kubono et al.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume: 986 Pages: 164687-164687
  • DOI: 10.1016/j.nima.2020.164687
  • Peer Reviewed
• [Journal Article] β decay of the very neutron-deficient 60Ge and 62Ge nuclei (2021)
  • Author(s): S.E.A. Orrigo, S. Kubono et al.
  • Journal Title: Physical Review C Volume: 103 Issue: 1 Pages: 014324-014324
  • DOI: 10.1103/physrevc.103.014324
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Insight into the reaction dynamics of proton drip-line nuclear system 17F+58Ni at near-barrier energies (2021)
  • Author(s): Yang L.、Lin C.J.、Yamaguchi H.、Lei Jin、Wen P.W.、Mazzocco M.、Ma N.R.、Sun L.J.、Wang D.X.、Zhang G.X.、Abe K.、Cha S.M.、et al.
  • Journal Title: Physics Letters B Volume: 813 Pages: 136045-136045
  • DOI: 10.1016/j.physletb.2020.136045
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Two-Neutron Halo is Unveiled in 29F (2020)
  • Author(s): S. Bagchi, R. Kanungo, Y. K. Tanaka, H. Geissel, P. Doornenbal, W. Horiuchi, G. Hagen, T. Suzuki, N. Tsunoda, D. S. Ahn, H. Baba, K. Behr, F. Browne, S. Chen, M. L. Cortes, A. Estrade, N. Fukuda, M. Holl, K. Itahashi, N. Iwasa et al.
  • Journal Title: Physical Review Letters Volume: 124 Issue: 22 Pages: 2225041-7
  • DOI: 10.1103/physrevlett.124.222504
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Spallation and fragmentation cross sections for 168 MeV/nucleon 138Xe ions on proton, deuteron, and carbon targets (2020)
  • Author(s): X. H. Sun, S. Kubono et al.
  • Journal Title: Physical Review C Volume: 101 Issue: 6 Pages: 064623-064623
  • DOI: 10.1103/physrevc.101.064623
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Isomeric and β-decay spectroscopy of 173,174Ho (2020)
  • Author(s): J. J. Liu, S. Kubono et al.
  • Journal Title: Physical Review C Volume: 102 Issue: 2 Pages: 024301-024301
  • DOI: 10.1103/physrevc.102.024301
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Mass measurements for the Tz = －2 fp-shell nuclei 40Ti, 44Cr, 46Mn, 48Fe, 50Co, and 52Ni (2020)
  • Author(s): C. Y. Fu, Y. H. Zhang M. Wang, X. H. Zhou, Yu. A. Litvinov, K. Blaum, H. S. Xu, X. Xu, P. Shuai, Y. H. Lam, R. J. Chen, X. L. Yan, X. C. Chen, J. J. He, S. Kubono, M. Z. Sun, X. L. Tu, Y. M. Xing, Q. Zeng, X. Zhou, W. L. Zhan, S. Litvinov, G. Audi, T. Uesaka, T. Yamaguchi, A. Ozawa, B. H. Sun, Y. Sun, F. R. Xu,
  • Journal Title: Phys. Rev. C Volume: 102 Issue: 5 Pages: 054311-054311
  • DOI: 10.1103/physrevc.102.054311
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Studies on Nuclear Astrophysics and Nuclear Clustering with Low-energy RI Beams at CRIB (2020)
  • Author(s): Yamaguchi H.、Hayakawa S.、Yang L.、Shimizu H.、Kahl D.、Suhara T.、Iwasa N.、Cha S. M.、Kwag M. S.、Lee J. H.、Lee E. J.、Chae K. Y.、Kim A.、Kim D. H.、Wakabayashi Y.、Imai N.、Kitamura N.、Lee P.、Moon J. Y.、Lee K. B.、Akers C.、Duy N. N.、Khiem L. H.、Lee C. S.
  • Journal Title: JPS Conf. Proc. Volume: 32 Pages: 010055-010055
  • DOI: 10.7566/jpscp.32.010055
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Study of the contribution of the 7Be(d, p) reaction to the 7Li problem in the Big-Bang Nucleosynthesis (2020)
  • Author(s): A. Inoue, H. Yamaguchi et al.
  • Journal Title: Journal of Physics: Conference Series Volume: 1643 Pages: 012049-012049
  • NAID: 130008148330
  • Peer Reviewed
• [Journal Article] Experiments on astrophysical reactions with low-energy unstable nuclei beams at CRIB (2020)
  • Author(s): Yamaguchi H.、Hayakawa S.、Ma N.R.、Shimizu H.、Yang L.、Kahl D.、Abe K.、Suhara T.、Iwasa N.、Kim A.、et al.
  • Journal Title: Journal of Physics: Conference Series Volume: 1643 Issue: 1 Pages: 012069-012069
  • DOI: 10.1088/1742-6596/1643/1/012069
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Direct processes for the systems 7Be,8B + 208Pb at Coulomb barrier energies (2020)
  • Author(s): Mazzocco M、Keeley N、Boiano A、Boiano C、Commara M La、Lagni A、Manea C、Parascandolo C、Pierroutsakou D、Signorini C、Strano E、Torresi D、Yamaguchi H、et al.
  • Journal Title: Journal of Physics: Conference Series Volume: 1643 Issue: 1 Pages: 012096-012096
  • DOI: 10.1088/1742-6596/1643/1/012096
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Study on 26mAl(p, γ) Reaction at the SNe Temperature (2020)
  • 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: JPS Conf. Proc. Volume: 31 Pages: 011073-011073
  • DOI: 10.7566/jpscp.31.011073
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Experimental Study on the 7Be(n,p)7Li and the 7Be(n,α)4He Reactions for Cosmological Lithium Problem (2020)
  • Author(s): Hayakawa S.、La Cognata M.、Lamia L.、Shimizu H.、Yang L.、Yamaguchi H.、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: JPS Conf. Proc. Volume: 31 Pages: 011036-011036
  • DOI: 10.7566/jpscp.31.011036
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Experimental Study of the 7Be(n,p1)7Li* Reaction for the Cosmological Lithium Problem (2020)
  • Author(s): S. Ishikawa, N. Iwasa, S. Kubono et al
  • Journal Title: JPS Conf. Proc. Volume: 31 Pages: 011037-011037
  • DOI: 10.7566/jpscp.31.011037
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Constraining the 12C+12C astrophysical S-factors with the 12C+13C measurements at very low energies (2020)
  • Author(s): N.T.Zhang, S. Kubono
  • Journal Title: Physics Letters B Volume: 801 Pages: 135170-135170
  • DOI: 10.1016/j.physletb.2019.135170
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Elastic scattering for the B8 and Be7+Pb208 systems at near-Coulomb barrier energies (2019)
  • Author(s): Mazzocco M.、Keeley N.、Boiano A.、Boiano C.、La Commara M.、Manea C.、Parascandolo C.、Pierroutsakou D.、Signorini C.、Strano E.、Torresi D.、Yamaguchi H.、Kahl D. et al.
  • Journal Title: Physical Review C Volume: 100 Issue: 2 Pages: 024602-024602
  • DOI: 10.1103/physrevc.100.024602
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Location of the Neutron Dripline at Fluorine and Neon (2019)
  • Author(s): Ahn D.S.、Fukuda N.、Geissel H.、Inabe N.、Iwasa N.、Kubo T.、Kusaka K.、Morrissey D.J.、Murai D.、Nakamura T.、Ohtake M.、Otsu H.、Sato H.、Sherrill B.M.、Shimizu Y.、Suzuki H.、Takeda H.、Tarasov O.B.、Ueno H.、Yanagisawa Y.、Yoshida K.
  • Journal Title: Physical Review Letters Volume: 123 Issue: 21 Pages: 212501-212501
  • DOI: 10.1103/physrevlett.123.212501
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] MITA: A Multilayer Ionization-chamber Telescope Array for low-energy reactions with exotic nuclei (2019)
  • Author(s): Ma N. R.、Yang L.、Lin C. J.、Yamaguchi H.、Wang D. X.、Sun L. J.、Mazzocco M.、Jia H. M.、Hayakawa S.、Kahl D.、Cha S. M.、Zhang G. X.、Yang F.、Yang Y. Y.、Signorini C. et al.
  • Journal Title: The European Physical Journal A Volume: 55 Issue: 6 Pages: 87-87
  • DOI: 10.1140/epja/i2019-12765-7
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Cross Section Measurements of the 7Be(n,p)7Li and the 7Be(n,α)4He Reactions Covering the Big-Bang Nucleosynthesis Energy Range by the Trojan Horse Method at CRIB (2019)
  • 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.、Iwasa N.、Kahl D.、Kim A.、Kim D. H.、Kiss G. G. et al.
  • Journal Title: Nuclei in the Cosmos XV Volume: 1 Pages: 33-37
  • DOI: 10.1007/978-3-030-13876-9_6
  • ISBN: 9783030138752, 9783030138769
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Study on Explosive Nucleosynthesis with Low-Energy RI Beams at CRIB (2019)
  • Author(s): Yamaguchi H.、CRIB Collaboration、Hayakawa S.、Yang L.、Shimizu H.、Kahl D.
  • Journal Title: Nuclei in the Cosmos XV Volume: 1 Pages: 265-268
  • DOI: 10.1007/978-3-030-13876-9_44
  • ISBN: 9783030138752, 9783030138769
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Cosmologically Relevant 7Be(n, α)4He Reaction in View of the Recent THM Investigations (2019)
  • Author(s): Lamia L.、Spitaleri C.、Mazzocco M.、Hayakawa S.、Bertulani C. A.、Boiano A.、Boiano C.、Broggini Carlo、Caciolli Antonio、Depalo Rosanna、Galtarossa F.、Guardo G. L.、Gulino M.、et al.
  • Journal Title: Nuclei in the Cosmos XV Volume: 1 Pages: 53-56
  • DOI: 10.1007/978-3-030-13876-9_9
  • ISBN: 9783030138752, 9783030138769
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Experimental Challenge to the Cosmological Li Problem (2019)
  • Author(s): S. Kubono, T. Kawabata, N. Iwasa et al.
  • Journal Title: Nuclei in the Cosmos XV Volume: 1 Pages: 45-51
  • DOI: 10.1007/978-3-030-13876-9_8
  • ISBN: 9783030138752, 9783030138769
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Commissioning of the BRIKEN detector for the measurement of very exotic β-delayed neutron emitters (2019)
  • Author(s): Tolosa-Delgado A.、Agramunt J.、Tain J.L.、Algora A.、Domingo-Pardo C.、Morales A.I.、Rubio B.、Tarifeo-Saldivia A.、Calvio F.、Cortes G.、Brewer N.T.、Rasco B.C.、Rykaczewski K.P.、Stracener D.W.、Allmond J.M.、Grzywacz R.、Yokoyama R.、Singh M.、King T.、Madurga M.、Nishimura S.、Phong V.H.、et al.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume: 925 Pages: 133-147
  • DOI: 10.1016/j.nima.2019.02.004
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Enhancement of element production by incomplete fusion reaction with weakly bound deuteron (2019)
  • Author(s): Wang H.、Otsu H.、Chiga N.、Nakamura T. et al.
  • Journal Title: Communications Physics Volume: 2 Issue: 1 Pages: 78-83
  • DOI: 10.1038/s42005-019-0165-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Observation of a μs isomer in In8549134: Proton-neutron coupling “southeast” of Sn8250132 (2019)
  • Author(s): Phong V. H.、Lorusso G.、Davinson T.、Estrade A.、Hall O.、Liu J.、Matsui K.、Montes F.、Nishimura S.、Boso A.、et al
  • Journal Title: Physical Review C Volume: 100 Issue: 1 Pages: 1-6
  • DOI: 10.1103/physrevc.100.011302
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Strong one-neutron emission from two-neutron unbound states in β decays of the r-process nuclei Ga86,87 (2019)
  • Author(s): Yokoyama R.、Grzywacz R.、Rasco B. C.、Brewer N.、Rykaczewski K. P.、Dillmann I.、Tain J. L.、Nishimura S.、Ahn D. S.、et al
  • Journal Title: Physical Review C Volume: 100 Issue: 3 Pages: 1-6
  • DOI: 10.1103/physrevc.100.031302
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Isotope production in proton-, deuteron-, and carbon-induced reactions on Nb93 at 113 MeV/nucleon (2019)
  • Author(s): Nakano Keita、Watanabe Yukinobu、Kawase Shoichiro、Kondo Yosuke et al.
  • Journal Title: Physical Review C Volume: 100 Issue: 4 Pages: 044605-044605
  • DOI: 10.1103/physrevc.100.044605
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Interplay of quasiparticle and vibrational excitations: First observation of isomeric states in 168Dy and 169Dy (2019)
  • Author(s): G.X. Zhang, H. Watanabe, G.D. Dracoulis, F.G. Kondev, G. J. Lane, P. H. Regan, P.-A. Soderstrom, P.M. Walker, K. Yoshida, et al.
  • Journal Title: Phys. Lett. B Volume: 799 Pages: 135036-135036
  • DOI: 10.1016/j.physletb.2019.135036
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Half-lives of Sr73 and Y76 and the consequences for the proton dripline (2019)
  • Author(s): Sinclair L. et al.
  • Journal Title: Physical Review C Volume: 100 Issue: 4 Pages: 044311-044311
  • DOI: 10.1103/physrevc.100.044311
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Masses of ground and isomeric states of 101In and configuration-dependent shell evolution in odd-A indium isotopes (2019)
  • Author(s): X. Xu, J. H. Liu, C. X. Yuan, Y. M. Xing, M. Wang, Y. H. Zhang, X. H. Zhou, Yu. A. Litvinov, K. Blaum, R. J. Chen, et al.
  • Journal Title: Phys. Rev. C Volume: 100 Issue: 5 Pages: 051303-051303
  • DOI: 10.1103/physrevc.100.051303
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] First measurement of 30S + α resonant elastic scattering for the 30S(α, p) reaction rate (2018)
  • 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
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Beam production of ? 18 Ne with in-flight method for alpha scattering at CRIB (2018)
  • 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
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Discovery of 60Ca and Implications For the Stability of 70Ca (2018)
  • Author(s): O.B. Tarasov, N.Iwasa他
  • Journal Title: Phys. Rev. Lett. Volume: 121 Issue: 2 Pages: 022501-022501
  • DOI: 10.1103/physrevlett.121.022501
  • Peer Reviewed / Int'l Joint Research
• [Presentation] 9Be(3He,α)8Be*→7Li+p反応測定を用いた、宇宙リチウム問題への7Be(n,p1)7Li*反応の影響の研究 (2020)
  • Author(s): 石川竣喜、岩佐直仁、久保野茂他
  • Organizer: 日本物理学会
• [Presentation] Experimental Study of the 7Be(n,p1)7Li* Reaction for the Cosmological Lithium Problem (2019)
  • Author(s): S. Ishikawa
  • Organizer: The 15th International Symposium on Origin of Matter and Evolution of Galaxies
  • Int'l Joint Research