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Theoretical study of double spin-isospin excitation

Research Project

Project/Area Number 16K05367
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 InstitutionInstitute of Physical and Chemical Research

Principal Investigator

SAGAWA HIROYUKI  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 (50178589)

Research Collaborator Colo Gianluca  
Bai Chun Lin  
Cao LiGang  
Roca-Moza Xavi  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsガモフテラー状態 / β崩壊 / アイソスピン同位体 / 荷電非保存力 / アイソスピン / ガモフ・テラー状態 / 2重β崩壊 / Gamow-Teller遷移 / 荷電移行反応 / 遷移和則 / エネルギー密度関数 / 荷電交換反応 / Gamow-Teller巨大共鳴 / 理論核物理
Outline of Final Research Achievements

In this project, I studied spin-isospin excitations such as double isobaric analogue state, double Gamow-Teller state and spin-dipole excitations induced by heavy ion charge exchange reactions. As theoretical models, I adopt Hartree-Fock- Bogolyubov theory and quasi-particle random phase approximation and applied to collective excitations revealed by double charge exchange reactions. I studied further the single and double charge exchange excitations by the sum rule method in order to establish a quantitative transition strength of double beta decay matrix elements. I discussed also in a unified way between double Gamow-Teller and double isobaric analogue states and examine the effect of charge symmetry breaking and charge independent breaking forces.

Academic Significance and Societal Importance of the Research Achievements

スピン、アイソスピンは量子多体系としての原子核構造を紐解く最も重要な概念である。その最先端の研究課題の2重ガモフ テラー励起状態及び2重スピン双極子励起状態は新しい集団励起状態として注目されているとともに、ニュートリノの質量を決める零ニュートリノ型2重β崩壊と相補的な関係にあり、非常に弱い遷移確率の2重β崩壊と非常に大きな確率遷移を持つ巨大スピン アイソスピン励起を同じ理論模型で定量的に解析することにより、原子核物理だけでなく素粒子物理や宇宙物理にも大きなインパクトを持つ研究である。

Report

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

    (42 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (4 results) Journal Article (20 results) (of which Int'l Joint Research: 14 results,  Peer Reviewed: 20 results,  Open Access: 20 results,  Acknowledgement Compliant: 8 results) Presentation (18 results) (of which Int'l Joint Research: 15 results,  Invited: 15 results)

  • [Int'l Joint Research] University of Milano(イタリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Soongsil Univeristy(韓国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 四川大学(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] University of Milano/INFN(Italy)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Spectroscopy of nuclei around 100Sn populated via two-neutron knockout reactions2018

    • Author(s)
      A. Corsi, H. Sagawa (fifth aurhot) et al.
    • Journal Title

      Phys. Rev. C

      Volume: 97

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The nuclear symmetry energy and the breaking of the isospin symmetry: how do they reconcile with each other ?2018

    • Author(s)
      X. Roca-Maza, G. Colo and H. Sagawa
    • Journal Title

      Phys. Rev. Lett.

      Volume: 120

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Neutron-proton Pairing Correlations and Deformation for N = Z Nuclei in pf-shell by the deformed BCS and HFB approach2018

    • Author(s)
      Eunja Ha, Myung-Ki Cheoun, H. Sagawa, and W. Y. So
    • Journal Title

      Phys. Rev. C

      Volume: 97

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Isoscalar and Isovector spin response in sd-shell nuclei2018

    • Author(s)
      H. Sagawa and T. Suzuki
    • Journal Title

      Phys. Rev. C

      Volume: 98

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of tensor and pairing correlations on bubble structure of sd-shell nuclei2018

    • Author(s)
      Kun Yu, Ji-Wei Cui, Xian-Rong Zhou and H. Sagawa
    • Journal Title

      Eur. Phys. J. A

      Volume: 54

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gamow-Teller transitions from high-spin isomers in N=Z nuclei2018

    • Author(s)
      H. Z. Liang, H. Sagawa, M. Sasano, T. Suzuki, and M. Honma
    • Journal Title

      Phys. Rev. C

      Volume: 98

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Beyond mean-field description of Gamow-Teller resonances and beta-decay2018

    • Author(s)
      Y. Niu, G. Colo, E. Vigezzi, C. L. Bai and H. Sagawa
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 966 Pages: 1-6

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] New concept for pairing anti-halo effect as a localized wave packet of quasi-particle2017

    • Author(s)
      K. Hagino and H. Sagawa
    • Journal Title

      Phys. Rev. C

      Volume: 95

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Thee-body model for nuclei near and beyond drip line2017

    • Author(s)
      H. Sagawa and K. Hagino
    • Journal Title

      Acta Physica Polonica B

      Volume: 10 Pages: 211-224

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of deformation in odd-even staggering in reaction cross sections for 30,31,32Ne and 36,37,38Mg isotopes2017

    • Author(s)
      Y. Urata, K. Hagino and H. Sagawa
    • Journal Title

      Phys. Rev. C

      Volume: 96

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interplay between isoscalar and isovector correlations in neutron-rich nuclei\2017

    • Author(s)
      I. Hamamoto and H. Sagawa
    • Journal Title

      Phys. Rev.

      Volume: 96

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Isovector spin-singlet (T=1, S=0) qnd isoscalar spin-triplet (T=0,S=1) pairing interaction and spin-ispspin response2016

    • Author(s)
      H. Sagawa, C. L. Bai and G. Colo
    • Journal Title

      Physics Scripta

      Volume: 91

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Structure of hypernuclei and Equation of state in neutron star2016

    • Author(s)
      E. Hiyama, Y. Yamamoto and H. Sagawa
    • Journal Title

      Physics Scripta

      Volume: 91

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Three-body model study of 26O2016

    • Author(s)
      K. Hagino and H. Sagawa
    • Journal Title

      Phys. Rev. C

      Volume: 93

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Three-body model for isoscalar spin-triplet neutron-proton pair in 102Sb2016

    • Author(s)
      Yusuke Tanimura and Hiroyuki Sagawa
    • Journal Title

      Phys. Rev. C

      Volume: 93

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Exotic structure of medium-heavy hypernuclei in Skyme Hartree-Fock model2016

    • Author(s)
      Xian-Rong Zhou, E. Hiyama and H. Sagawa
    • Journal Title

      Phys. Rev. C

      Volume: 94

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Fully self-consistent study of charge-exchange resonances and the impact on the symmetry energy parameters2016

    • Author(s)
      X. Roca-Maza, Li-Gang Cao, G. Colo, H. Sagawa
    • Journal Title

      Phys. Rev. C

      Volume: 94

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] ffect of isoscalar spin-triplet pairings on spin-isospin responses in sd-$ shell nuclei2016

    • Author(s)
      H. Sagawa, T. Suzuki, and M. Sasano
    • Journal Title

      Phys. Rev. C

      Volume: 94

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Sum rules of Double Gamow Teller states2016

    • Author(s)
      H. Sagawa and T. Uesaka
    • Journal Title

      Phys. Rev. C

      Volume: 94

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Quasi-particle random phase approximation with quasi-particle-vibration coupling: application to the Gamow-Teller response of a superfluid nucleus 120Sn2016

    • Author(s)
      Y. Niu, G. Colo, E. Vigezzi, C. L. Bai and H. Sagawa
    • Journal Title

      Phys. Rev. C

      Volume: 94

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] EoS from terrestrial experiments: static and dynamic polarizations of nuclear density2019

    • Author(s)
      H. Sagawa
    • Organizer
      the Xiamen-CUSTIPEN Workshop on the EOS of Dense Neutron-Rich Matter in the Era of Gravitational Wave Astronomy
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent topics of spin and spin-isospin excitations2018

    • Author(s)
      H. Sagawa
    • Organizer
      CUSTIPEN symposium 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Quenching of Isoscalar and Isovector spin response in sd- shell nuclei2018

    • Author(s)
      H. Sagawa
    • Organizer
      Nuclear Structure and Related Topics 2018 (NSRT08)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] IS and IV pairing correlations and its Phase transition2018

    • Author(s)
      H. Sagawa
    • Organizer
      Symposium on Recent advances on proton-neutron pairing and quartet correlation in nuclei
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent progress in quests of Spin and Spin-isospin excitations2018

    • Author(s)
      H. Sagawa
    • Organizer
      COMEX6 (Collecive Motions in Exotic Nuclei)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent Progress on Spin-Isospin excitations2018

    • Author(s)
      H. Sagawa
    • Organizer
      Recent Advances in Nuclear Structure Physics 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The nuclear symmetry energy and the breaking of isospin symmetry2018

    • Author(s)
      H. Sagawa
    • Organizer
      International Condefnece on Nucleus-Nucleus Collisions 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Three-body model for nuclei near and beyond drip line2017

    • Author(s)
      H. Sagawa
    • Organizer
      Ischia Nuclear Structure workshop
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Spin and Spin-Isospin Responses in N=Z nuclei and Isoscalar Spin-triplet Pairing2017

    • Author(s)
      H. Sagawa
    • Organizer
      RIKEN Interdisciplinary symposium on modern density functional theory
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Spin and Spin-Isospin Responses and Isoscalar Spin-triplet Pairing2017

    • Author(s)
      H. Sagawa
    • Organizer
      Int. Symp. on Physics of Unstable Nuclei (ISPUN) 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] The nuclear symmetry energy and the breaking of isospin symmetry2017

    • Author(s)
      H. Sagawa
    • Organizer
      RIKEN Workshop on "Nuclear matter in neutron stars"
    • Related Report
      2017 Research-status Report
  • [Presentation] Microscopic models for Spin, Isospin and Spin-Isospin Responses2017

    • Author(s)
      H. Sagawa
    • Organizer
      Yukawa Institute of Theoretical Physics (YITP) school
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Nuclear models and Hyperons2016

    • Author(s)
      H. Sagawa
    • Organizer
      Soongsil University
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2016-10-31
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 対相関とテンソル力2016

    • Author(s)
      H. Sagawa
    • Organizer
      日本物理学会
    • Place of Presentation
      Kiyotake Campus, Miyazaki University, Japan
    • Year and Date
      2016-09-21
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Three-body model for nuclei near and beyond drip line2016

    • Author(s)
      H. Sagawa
    • Organizer
      XXIII Nuclear Physics Workshop
    • Place of Presentation
      Kazimeirz, Poland
    • Year and Date
      2016-09-17
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] New Mass Model FRDM 2012 and Symmetry Energy2016

    • Author(s)
      H. Sagawa
    • Organizer
      International Coference NIC (Nuclei in Cosmos) 2016
    • Place of Presentation
      Hotel Nikko, Niigata, Japan
    • Year and Date
      2016-06-19
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Gamow-Teller transitions and Isoscalar pairing2016

    • Author(s)
      H. Sagawa
    • Organizer
      Workshop on proton-neutron and alpha-correlations
    • Place of Presentation
      Yukawa Hall, Kyoto University, Japan
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Pairing and di-neuron correlations in Exotic Nuclei2016

    • Author(s)
      H. Sagawa
    • Organizer
      RAON/RISP workshop
    • Place of Presentation
      Deajone, Korea
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2016-04-21   Modified: 2020-03-30  

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