Pygmy Dipole Resonances in Zr isotopes

2014 Fiscal Year Final Research Report

• Project/Area Number: 25887036
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Osaka University
• Principal Investigator: IWAMOTO Chihiro 大阪大学, 核物理研究センター, 特任研究員 (50649770)
• Project Period (FY): 2013-08-30 – 2015-03-31
• Keywords: 実験核物理

Outline of Final Research Achievements

Purpose of the study is to measure a Pygmy Dipole Resonances (PDRs) in Zirconium isotopes and to develop the new method to observe a structure of the PDR. The PDR is a new electric dipole resonances which have been found in recent years.

We have devepoled to measure the PDRs in Zirconium isotopes above 4MeV of excitation energy and we are performing an experiment to measure the PDR in Zrconium isotopes now. The PDRs in Zirconium isotopes is predicted to appear in the excitation energy range from 4MeV to 7MeV. In addition, we have estimated a background around an area in which we will set detectors for the measurement of the PDR structure and we have make a shield for the background and a vacuum chamber for targets.

Free Research Field

物理学