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Accurate calculations of nuclear structure for half-lives of neutrinoless double beta decay

Research Project

Project/Area Number 17K05450
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 InstitutionChiba Institute of Technology

Principal Investigator

Higashiyama Koji  千葉工業大学, 創造工学部, 教授 (60433679)

Co-Investigator(Kenkyū-buntansha) 吉永 尚孝  埼玉大学, 理工学研究科, 教授 (00192427)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords原子核構造 / 二重ベータ崩壊 / 原子核殻模型 / 核子対殻模型 / 生成座標法 / 殼模型 / 核子対殼模型 / シッフモーメント / 電気双極子モーメント / 理論核物理 / 殻模型
Outline of Final Research Achievements

We investigate nuclear structure of even-even, odd-mass, and doubly odd nuclei in the masses 80, 100, 210 and 220 regions using a nuclear shell model. Energy levels of the low-lying states are reproduced very well along with electromagnetic transition rates. For the mass 80, 100 and 130 regions, we estimate the nuclear matrix elements for the neutrinoless double beta decay. Our calculations give a few times smaller nuclear matrix elements than those obtained by other theoretical methods.

Academic Significance and Societal Importance of the Research Achievements

本研究の特色は,重い原子核の偶偶核・奇核・奇奇核に対し,平均場理論を超えた枠組みにより原子核構造の研究を行い,その結果得られる精度の良い波動関数を用いて二重ベータ崩壊に対する核行列要素を計算することにある。これまでに行われてきた核行列要素の理論計算は,原子核殻模型,乱雑位相近似,相互作用するボソン模型等による研究が行われているが,エネルギー準位や電磁遷移等による原子核構造の再現が確認されておらず,信頼性は高くない。このため,本研究の成果が十分に活かされ,学術的・社会的貢献が大きい。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (31 results)

All 2021 2020 2019 2018 2017

All Journal Article (12 results) (of which Peer Reviewed: 12 results,  Open Access: 8 results) Presentation (19 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Large-scale nuclear shell-model calculations of isotopes in the south-west region of 208Pb2021

    • Author(s)
      N. Yoshinaga, K. Yanase, C. Watanabe, and K. Higashiyama
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: - Issue: 6 Pages: 1-23

    • DOI

      10.1093/ptep/ptab039

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Schiff moments of Hg isotopes in the nuclear shell model2020

    • Author(s)
      Naotaka Yoshinaga, Kota Yanase and Koji Higashiyama
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 1643 Pages: 012006-012006

    • DOI

      10.1088/1742-6596/1643/1/012006

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Neutrinoless double-beta decay rates around mass 130 in the nuclear shell model2020

    • Author(s)
      N. Yoshinaga , K. Yanase , C. Watanabe and K. Higashiyama
    • Journal Title

      JPS Conf. Proc.

      Volume: 32, Pages: 010046-010046

    • DOI

      10.7566/jpscp.32.010046

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nuclear matrix elements of neutrinoless double beta decay for masses 130 and 136 in the shell model2020

    • Author(s)
      K. Higashiyama, K. Yanase, N. Yoshinaga, A. Umeya, A. Uehara, E. Teruya
    • Journal Title

      Journal of Physics G: Nuclear and Particle Physics

      Volume: 47 Issue: 3 Pages: 035102-035116

    • DOI

      10.1088/1361-6471/ab5400

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electric dipole moment of 199Hg atom from P, CP-odd electron-nucleon interaction2019

    • Author(s)
      K. Yanase, N. Yoshinaga, K. Higashiyama, N. Yamanaka
    • Journal Title

      PHYSICAL REVIEW D

      Volume: 99-075021 Issue: 7 Pages: 1-13

    • DOI

      10.1103/physrevd.99.075021

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nuclear Schiff Moments in Medium and Heavy Nuclei2018

    • Author(s)
      Naotaka Yoshinaga, Eri Teruya, Koji Higashiyama and Kota Yanase
    • Journal Title

      JPS Conf. Proc.

      Volume: 23-012034 Pages: 1-6

    • DOI

      10.7566/jpscp.23.012034

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Shell Model Study of Nuclei around Mass 1002018

    • Author(s)
      Koji Higashiyama, Naotaka Yoshinaga and Kota Yanase
    • Journal Title

      JPS Conf. Proc.

      Volume: 23-013002 Pages: 1-4

    • DOI

      10.7566/jpscp.23.013002

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Shell-model study of Pb, Bi, Po, At, Rn, and Fr isotopes with masses from 210 to 2172018

    • Author(s)
      K. Yanase, E. Teruya, K. Higashiyama, and N. Yoshinaga
    • Journal Title

      PHYSICAL REVIEW C

      Volume: 98-014308 Issue: 1 Pages: 1-18

    • DOI

      10.1103/physrevc.98.014308

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] High-spin structure in the transitional nucleus 131Xe: Competitive neutron and proton alignment in the vicinity of the N = 82 shell closure2018

    • Author(s)
      L. Kaya, A. Vogt, P. Reiter, M. Siciliano, B. Birkenbach, A. Blazhev, L. Coraggio, E. Teruya, N. Yoshinaga, K. Higashiyama, 他
    • Journal Title

      PHYSICAL REVIEW C

      Volume: 98-014309 Issue: 1 Pages: 1-19

    • DOI

      10.1103/physrevc.98.014309

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Octupole phonon model based on the shell model for octupole vibrational states2018

    • Author(s)
      N. Yoshinaga, K. Yanase, K. Higashiyama, and E. Teruya
    • Journal Title

      PHYSICAL REVIEW C

      Volume: 98-044321 Issue: 4 Pages: 1-8

    • DOI

      10.1103/physrevc.98.044321

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Structure of nuclei with masses 76 and 82 and nuclear matrix elements of neutrinoless double beta decay2018

    • Author(s)
      Yoshinaga N、Yanase K、Higashiyama K、Teruya E、Taguchi D
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2018 Issue: 2 Pages: 1-19

    • DOI

      10.1093/ptep/ptx174

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of particle-hole excitations to nuclear Schiff moments in Xe isotopes2017

    • Author(s)
      E. Teruya, N. Yoshinaga, K. Higashiyama, and K. Asahi
    • Journal Title

      Physical Review C

      Volume: 96 Issue: 1

    • DOI

      10.1103/physrevc.96.015501

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ヨウ素126のダブレットバンドのQCMによる解析2021

    • Author(s)
      吉永尚孝,渡邊千夏,東山幸司,柳瀬宏太
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 質量数130領域でのダブルベータ崩壊の殻模型による解析2021

    • Author(s)
      小俣里佳,渡邊千夏,吉永尚孝,柳瀬宏太,東山幸司
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 重い原子核での殻模型計算におけるテンソル力の役割2020

    • Author(s)
      吉永尚孝, 江幡修一郎, 渡邊千夏, 東山幸司
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Mo-Ru-Pd領域の原子核における二重ベータ崩壊核行列要素2020

    • Author(s)
      東山幸司, 吉永尚孝
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 鉛208付近での有効電荷の殻模型による評価2019

    • Author(s)
      吉永尚孝, 東山幸司, 梅谷篤史, 柳瀬宏太
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 質量数130領域の奇核のE1遷移2019

    • Author(s)
      東山幸司, 吉永尚孝, 柳瀬宏太
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 殻模型計算によるヨウ素126ダブレットバンドの解析2019

    • Author(s)
      柳瀬宏太, 吉永尚孝, 東山幸司
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 質量数100領域でのニュートリノレスダブルベータ崩壊の核行列要素2019

    • Author(s)
      吉永尚孝, 柳瀬宏太, 東山幸司
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Mo-Ru-Pd領域の原子核の励起メカニズム2019

    • Author(s)
      東山幸司, 吉永尚孝, 柳瀬宏太
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Large-scale shell-model calculation and nuclear Schiff moment of 199Hg2018

    • Author(s)
      Kota Yanase, Koji Higashiyama, Eri Teruya, and Naotaka Yoshinaga
    • Organizer
      5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Large-scale shell-model calculations on nuclei around mass 2102018

    • Author(s)
      Naotaka Yoshinaga, Kota Yanase, Koji Higashiyama, and Eri Teruya
    • Organizer
      5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Neutrinoless double-beta decay rates around mass 130 in the nuclear shell model2018

    • Author(s)
      Naotaka Yoshinaga, and Koji Higashiyama
    • Organizer
      13th International Conference on Nucleus-Nucleus Collisions (NN2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 208Pb付近の有効電荷の軌道による依存性2018

    • Author(s)
      吉永尚孝, 柳瀬宏太, 東山幸司, 梅谷篤史
    • Organizer
      日本物理学会第73回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 原子核殻模型による199Hgのシッフモーメントの評価2018

    • Author(s)
      柳瀬宏太, 吉永尚孝, 東山幸司, 梅谷篤史
    • Organizer
      日本物理学会第73回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Mo-Ru-Pd領域の殻模型計算2018

    • Author(s)
      東山幸司, 吉永尚孝, 柳瀬宏太
    • Organizer
      日本物理学会第73回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 吉永尚孝, 東山幸司, 柳瀬宏太, 照屋絵理2017

    • Author(s)
      コア励起を入れた殻模型の鉛領域核への適用
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 東山幸司, 吉永尚孝, 柳瀬宏太2017

    • Author(s)
      質量数100領域の原子核の生成座標法による解析
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 照屋絵理, 吉永尚孝, 東山幸司, 柳瀬宏太2017

    • Author(s)
      質量数200領域の原子核のシッフモーメント
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 柳瀬宏太, 吉永尚孝, 東山幸司, 梅谷篤史2017

    • Author(s)
      殻模型によるニュートリノを放出する二重ベータ崩壊の核行列要素計算
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2022-01-27  

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