2016 Fiscal Year Final Research Report
Construction of microscopic reaction theory based on chiral g-matrix and effects of three-nucleon force
| Project/Area Number |
26400278
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 三核子力 / カイラル有効場理論 / 微視的反応理論 / ハロー核 / 中性子星 |
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| Outline of Final Research Achievements |
We constructed a reliable microscopic reaction model for describing nucleon and 3,4He elastic scattering simultaneously. The model is “double folding (DF) model with target-density approximation”. The chiral G matrix was constructed from chiral two-nucleon and three-nucleon forces by using Brueckner Hartree-Fock theory. The DF model with the chiral G matrix as an effective nucleon-nucleon force well describes nucleon and 3,4He elastic scattering. The effects of chiral three-nucleon force are large for 3,4He elastic scattering but small for nucleon scattering. Radii of Mg isotopes were determined from measured reaction cross section by using the DF model. 37Mg was found to be a deformed halo nucleus. We proposed a measurable parameter quantifying the halo nature of one-neutron halo nuclei. We determined the upper limit of the strength of the vector-type four-quark interaction for the quark phase to emerge in the inner core of two solar-mass neutron stars.
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| Free Research Field |
原子核理論
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