Evaluation of neutrino inelastic reaction rates by measurements of magnetic dipole strengths

• Project/Area Number: 20540300
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: SHIZUMA Toshiyuki Japan Atomic Energy Agency, 量子ビーム応用研究部門, 研究主幹 (50282299)
• Co-Investigator(Kenkyū-buntansha): TOYOKAWA Hiroyuki 産業技術総合研究所, 計測フロンティア研究部門, 研究員 (80357582) ; OHGAKI Hideaki 京都大学, エネルギー理工学研究所, 教授 (10335226) ; NAKADA Hitoshi 千葉大学, 理学研究科, 教授 (80221448)
• Co-Investigator(Renkei-kenkyūsha): HAYAKAWA Takehito 日本原子力研究開発機構, 量子ビーム応用研究部門, 研究主幹 (70343944)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 原子核構造 / 光核共鳴散乱 / レーザー逆コンプトンガンマ線 / 核共鳴散乱

Research Abstract

Nuclear resonance fluorescence measurements by using laser Compton scattering gamma rays have been carried out to explore the magnetic dipole (M1) structure in closed-shell nuclei and their neighbors. We have obtained the M1 strength distribution of iron nuclei which is necessary for evaluation of inelastic neutrino reaction rates. Furthermore, we have performed shell model calculations and elucidated that the M1 transitions above the excitation energy of 6 MeV are mainly caused by particle-hole excitation between f5/2 and f7/2 orbitals.

Research Products

• [Journal Article] 光核共鳴散乱による核構造研究、第10回光量子科学シンポジウム論文集 (2010)
  • Author(s): 静間俊行
  • Journal Title: JAEA-Conf 002 Pages: 103-106
• [Journal Article] Spin-flip M1 strengths in ^<208>Pb (2009)
  • Author(s): 静間俊行
  • Journal Title: AIP Conf Proceedings 1153 Pages: 207-302
  • Peer Reviewed
• [Journal Article] Fine structure of the magnetic-dipole-strength distribution in ^<208>Pb (2008)
  • Author(s): Toshiyuki Shizuma, Takehito Hayakawa, Hideaki Ohgaki, Hiroyuki Toyokawa, Tetsuro Komatsubara, Nobuhiro Kikuzawa, Atsushi Tamii, Hitoshi Nakada
  • Journal Title: Physical Review C 78 Pages: 0613031-4
  • Peer Reviewed
• [Journal Article] Fine structure of magnetic-dipole-strength-distribution in 208Pb (2008)
  • Author(s): 静間俊行
  • Journal Title: Physical Review C 78
  • Peer Reviewed
• [Presentation] Photo-Nuclear Physics Experiments by using an Intense Photon Beam (2011)
  • Author(s): 静間俊行
  • Organizer: Extreme Light Infrastructure Nuclear Physics International Workshop
  • Place of Presentation: ルーマニア、ブカレスト
  • Year and Date: 2011-03-11
• [Presentation] Photo-Nuclear Physics Experiments by using an Intense Photon Beam (2011)
  • Author(s): 静間俊行
  • Organizer: Extreme Light Infrastructure Nuclear Physics International Workshop
  • Place of Presentation: Bucharest, Romania
• [Presentation] Nuclear Resonance Fluorescence Measurements by Quasi-monochromatic, Linearly Polarized Photon Beams (2010)
  • Author(s): 静間俊行
  • Organizer: International Nuclear Physics Conference
  • Place of Presentation: カナダ、バンクーバー
  • Year and Date: 2010-07-08
• [Presentation] レーザー逆コンプトンガンマ線を用いた^<56>Feの核共鳴散乱実験 (2010)
  • Author(s): 静間俊行
  • Organizer: 日本物理学会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-20
• [Presentation] レーザー逆コンプトンガンマ線を用いた56Feの核共鳴散乱実験 (2010)
  • Author(s): 静間俊行、早川岳人、菊澤信宏、大垣英明、豊川弘之、小松原哲郎
  • Organizer: 日本物理学会
  • Place of Presentation: 岡山大学
• [Presentation] Nuclear Resonance Fluorescence Measurements by Quasi-monochromatic (2010)
  • Author(s): Toshiyuki Shizuma, Takehito Hayakawa, Hideaki Ohgaki, Hiroyuki Toyokawa, Tetsuro Komatsubara, Nobuhiro Kikuzawa, Atsushi Tamii, Hitoshi Nakada
  • Organizer: Linearly Polarized Photon Beams
  • Place of Presentation: International Nuclear Physics Conference, Vancouver, Canada, July
• [Presentation] レーザー逆コンプトンガンマ線を用いた光核物理研究 (2010)
  • Author(s): 静間俊行
  • Organizer: 第3回研究戦略ワークショップ「J-PARCビームラインでの宇宙核物理研究および関連する研究」
  • Place of Presentation: 東京都上野
• [Presentation] ニュートリノ相互作用研究のための核共鳴散乱によるM1遷移測定 (2009)
  • Author(s): 静間俊行
  • Organizer: 同位体組成と元素の起源の研究会
  • Place of Presentation: 国立天文台
• [Presentation] レーザー逆コンプトン散乱ガンマ線による鉄領域核の核共鳴散乱実験 (2009)
  • Author(s): 静間俊行、早川岳人、菊澤信宏、大垣英明、豊川弘之、小松原哲郎
  • Organizer: 日本物理学会
  • Place of Presentation: 立教大学
• [Presentation] Nuclear photon scattering experiments by quasi-monochromatic, linearly polarized light sources (2009)
  • Author(s): Toshiyuki Shizuma, Takehito Hayakawa, Hideaki Ohgaki, Hiroyuki Toyokawa, Tetsuro Komatsubara, Nobuhiro Kikuzawa, Atsushi Tamii, Hitoshi Nakada
  • Organizer: The 3rd Joint Meeting of the Nuclear Physics Divisions of the APS and JPS
  • Place of Presentation: Hawaii
• [Presentation] レーザー逆コンプトンガンマ線による208PbのE1,M1,E2遷移強度の測定 (2008)
  • Author(s): 静間俊行
  • Organizer: 日本物理学会
  • Place of Presentation: 山形大学
  • Year and Date: 2008-09-22
• [Presentation] レーザー逆コンプトンガンマ線による^<208>PbのE1,M1,E2遷移強度の測定 (2008)
  • Author(s): 静間俊行、早川岳人、菊澤信宏、大垣英明、豊川弘之、小松原哲郎、民井淳、中田仁
  • Organizer: 日本物理学会
  • Place of Presentation: 山形大学
• [Patent(Industrial Property Rights)] 核種分析方法、核種分析装置 (2010)
  • Inventor(s): 静間俊行、羽島良一、早川岳人、大垣英明、豊川弘之
  • Industrial Property Rights Holder: 日本原子力研究開発機構
  • Industrial Property Number: 2010-170643
  • Filing Date: 2010-07-29