2013 Fiscal Year Final Research Report
Pairing correlation and pair transfer reactions of weakly bound nuclei
| Project/Area Number |
22540262
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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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 | Tohoku University |
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Principal Investigator |
HAGINO Kouichi 東北大学, 理学(系)研究科(研究院), 准教授 (20335293)
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| Co-Investigator(Renkei-kenkyūsha) |
SAGAWA Hiroyuki 会津大学, コンピューター理工学部, 教授 (50178589)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | 中性子過剰核 / 対相関 / ダイニュートロン相関 / ２核子放出崩壊 / 反応断面積 / 重イオン反応 / 対移行反応 / 中性子ハロー |
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| Research Abstract |
It was an aim of this study to clarify the pairing correlation between nucleons in weakly-bound neutron-rich nuclei. The main achievements include: i) I have pointed out that a two-nucleon emission decay of unbound nuclei outside the drip lines strongly reflect the pairing correlation, and thus the dinucleon correlation can be probed by studying the angular correlation of the emitted two nucleons, ii) I have shown that an odd-even staggering of reaction cross sections of neutron-rich nuclei is intimat-ely related to the pairing anti-halo effect, and iii) I have developed a novel model for heavy-ion fusion reactions at energies around the Coulomb barrier, which takes into account the effects of multi-nucleon transfer processes.It was an aim of this study to clarify the pairing correlation between nucleons in weakly-bound neutron-rich nuclei. The main achievements include: i) I have pointed out that a two-nucleon emission decay of unbound nuclei outside the drip lines strongly reflect the pairing correlation, and thus the dinucleon correlation can be probed by studying the angular correlation of the emitted two nucleons, ii) I have shown that an odd-even staggering of reaction cross sections of neutron-rich nuclei is intimat-ely related to the pairing anti-halo effect, and iii) I have developed a novel model for heavy-ion fusion reactions at energies around the Coulomb barrier, which takes into account the effects of multi-nucleon transfer processes.
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