Measurement of the compressibility on weakly-bound nuclei by missing mass spectroscopy

• Project/Area Number: 19740166
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: BABA Hidetada The Institute of Physical and Chemical Research, 情報処理技術チーム, リサーチアソシエイト (10415268)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,120,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥420,000); Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,300,000)
• Keywords: 不安定核実験 / 弱束縛核 / 核の圧縮性 / γ線検出器 / 質量欠損分光 / 核の圧縮率

Research Abstract

The compressibility on weakly-bound nuclei is one of the very important parameters to understand neutron start and super nova explosion. In this research. the methodology to determine the compressibility is established by selectively measuring isoscalar dipole resonances with the missing mass method. For measurement, high-intensity unstable- nucleus beam, a high-resolution spectrometer and high-energy gamma-ray detectors with position sensitivity are required. The performance evaluations of these components are performed.

Research Products

• [Journal Article] New data acquisition system for the RIKEN Radioactive Isotope Beam Factory (2010)
  • Author(s): H. Baba (8人中1番目)
  • Journal Title: Nuclear Instruments and Methods A 616 Pages: 65-68
  • Peer Reviewed
• [Journal Article] Spectroscopy of 32Ne and the "Island of Inversion" (2009)
  • Author(s): P. Doornenbal, H. Baba, et al. (54人中8番目)
  • Journal Title: Physical Review Letters 103 Pages: 32501-32501
  • Peer Reviewed
• [Journal Article] The New DAQ System in RIKEN RIBF (2008)
  • Author(s): H. Baba, et al.
  • Journal Title: Nuclear Science Symposium Conference Record NSS'08 Pages: 1384-1386
  • Peer Reviewed
• [Journal Article] Isoscalar compressional strengths in 14O (2007)
  • Author(s): H. Baba, et. al.
  • Journal Title: Nuclear Physics A 788 Pages: 188-193
  • Peer Reviewed
• [Journal Article] New data acquisition system for the RIKEN Radioactive Isotope Beam Factory
  • Author(s): H.Baba, et al.
  • Journal Title: Nuclear Inst.and Methods in Physics Research, A (in press)
  • Peer Reviewed
• [Presentation] The New DAQ System in RIKEN RIBF (2009)
  • Author(s): H.Baba et al.
  • Organizer: 3rd Joint Meeting of APS and JPS
  • Place of Presentation: Waikoloa, Hawaii, USA
  • Year and Date: 2009-10-14
• [Presentation] Study of Giant Resonances in Unstable Nuclei by Decay Measurements (2008)
  • Author(s): H. Baba
  • Organizer: Workshop on Giant Resonances with Inverse Kinematics and Missing Mass Techniques
  • Place of Presentation: Wako, Saitama
  • Year and Date: 2008-11-25
• [Presentation] The New DAQ System in RIKEN RIBF (2008)
  • Author(s): H. Baba
  • Organizer: IEEE 2008 Nuclear Science Symposium and Medical Imaging Conference
  • Place of Presentation: Dresden, Germany
  • Year and Date: 2008-10-20
• [Presentation] Measurement of isoscalar monopole and dipole strengths in 14O (2007)
  • Author(s): H. Baba
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2007-06-06
• [Presentation] Isoscalar excitation in 14O (2007)
  • Author(s): H. Baba
  • Organizer: Direct Reactions with Exotic Beams (DREB2007)
  • Place of Presentation: Wako, Japan
  • Year and Date: 2007-05-31
• [Presentation] Isoscalar excitation in 14O (2007)
  • Author(s): H. Baba, et. al.
  • Organizer: Direct Reaction with Exotic Beams
  • Place of Presentation: Wako, Japan
  • Year and Date: 2007-05-31