Systematic linear-response calculations of medium-heavy unstable nuclei in a nuclear energy-density-functional approach
| Project/Area Number |
23740223
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
|---|
| Research Institution | Niigata University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2011-04-28 – 2015-03-31
|
| Project Status |
Completed (Fiscal Year 2014)
|
| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
|
|---|
| Keywords | 集団運動 / 原子核密度汎関数法 / 乱雑位相近似法 / 核子対相関 / 対相関 / スピン・アイソスピン応答 / 巨大共鳴 / ベータ崩壊 / 低エネルギー集団励起モード |
|---|
| Outline of Final Research Achievements |
A new calculation scheme based on a Skyrme-energy density functional (EDF) was developed and applied to systematic calculation of linear responses of nuclei in a wide mass region. It was shown that the Skyrme EDF is able to reproduce well the giant multipole resonances in the stable rare-earth nuclei, in which lots of experimental data are available. Then, the nuclear matter properties such as incompressibility were extracted through the excitation energies of giant resonances. Furthermore, the calculation scheme was extended to describe the spin-isospin responses. It was shown that beta-decay rates of deformed neutron-rich nuclei relevant to the r-process nucleosynthesis could be produced quantitatively with a proper choice of the proton-neutron pairing interaction.
|
Report
(5 results)
Research Products
(45 results)
