Study of nuclear structure of neutron rich double closed shell nuclei by on-line low temperature nuclear orientation method.

• Project/Area Number: 23540337
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Niigata University
• Principal Investigator: OHTSUBO TAKASHI 新潟大学, 自然科学系, 准教授 (70262425)
• Co-Investigator(Kenkyū-buntansha): 武藤 豪 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 講師 (90249904)
• Co-Investigator(Renkei-kenkyūsha): MUTO Suguru 高エネルギー加速器研究機構, 物質構造科学研究所, 講師 (90249904)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2013: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2011: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
• Keywords: 不安定核 / 電磁気モーメント / 偏極核 / 偏極核生成 / 原子核偏極 / 低温

Research Abstract

Around nucleus of which the number of protons and neutrons are the "magic number", the nuclear stability increases very well. In such nuclei, we can find the higher order effects in the nuclear structure. So far such study has been done around stable nuclear region; we apply it to neutron-rich region. We measured the magnetic moment of unstable nuclei 49Sc (T1/2 = 57m) by the on-line nuclear orientation method. We compared the result with recent nuclear theoretical calculations. The calculations agree with our results but it shows a need for improvement in theoretical calculation around stable doubly closed shell nuclei.

Research Products

• [Journal Article] Magnetic Dipole Moment of the Doubly-Closed-Shell Plus One Proton Nucleus 49Sc (2012)
  • Author(s): T. Ohtsubo, N. J. Stone, J. R. Stone, I. S. Towner, C. R. Bingham, C. Gaulard, U. Ko¨ster, S. Muto, J. Nikolov, K. Nishimura, G. S. Simpson, G. Soti, M. Veskovic他2名
  • Journal Title: Physical Review Letters Volume: 109 Issue: 3 Pages: 32504-32504
  • DOI: 10.1103/physrevlett.109.032504
  • Peer Reviewed