Shell evolution towards doubly-magic 78Ni studied by the beta-gamma spectroscopy

2014 Fiscal Year Final Research Report

• Project/Area Number: 25800130
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: NIIKURA Megumi 東京大学, 理学(系)研究科(研究院), 助教 (50644720)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 実験原子核物理 / 原子核構造 / ベータ崩壊 / ガンマ線核分光

Outline of Final Research Achievements

Spectroscopic studies were carried out on neutron-rich Zn isotopes to explore the single-particle structure of the most neutron-rich doubly-magic nucleus, Ni-78. The experiment was performed at RI Beam Factory (RIBF) in RIKEN using two different method: beta-gamma spectroscopy and in-beam gamma-ray spectroscopy. Excited level schemes of Zn-79,80,81 were constructed for the first time. From the different selectivity of the decay/reaction, single-particle states are identified and the shell-evolution of this neutron-rich nuclei were discussed.

Free Research Field

実験原子核物理学