2018 Fiscal Year Final Research Report
Nonlocalized cluster dynamics and multi-cluster resonance states
| Project/Area Number |
17K14262
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Hokkaido University |
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Principal Investigator |
ZHOU BO 北海道大学, 高等教育推進機構, 助教 (80749755)
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| Project Period (FY) |
2017-04-01 – 2019-03-31
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| Keywords | cluster structure / nonlocalized clustering / THSR wave function |
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| Outline of Final Research Achievements |
A new trial wave function is proposed for nuclear cluster physics, in which an exact solution to center-of-mass problem is given. In the new approach, the widths of the single-nucleon Gaussian wave packets and the widths of the relative Gaussian wave functions describing correlations of clusters are treated as variables in the explicit intrinsic wave function of the nuclear cluster system.
We successfully described the negative-parity 3- and 4- states of 12C in a simple container model and the nonlocalized cluster motion in the two-dimensional container was very clearly demonstrated.
The 2α + t cluster structure in 11B is investigated by the microscopic cluster model. It is found that many states around the 2α + t threshold show the feature of developed clusters.
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| Free Research Field |
Theoretical nuclear physics
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| Academic Significance and Societal Importance of the Research Achievements |
A new picture was provided for understanding the 3alpha cluster structure for the negative-parity states of 12C. As a new proposed nuclear cluster wave function, the distortion effects of clusters in light nuclei are very likely to be investigated in a more realistic way in this new framework.
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