2003 Fiscal Year Final Research Report Summary
Mechanism of Coulomb breakup of loosely bound nucleus and its application to astrophysical reactions
| Project/Area Number |
13640261
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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 |
素粒子・核・宇宙線
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| Research Institution | Tohoku University (2003)
Saitama University (2001-2002) |
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Principal Investigator |
OKAMURA Hiroyuki Tohoku University, Cyclotron and Radioisotope Center, Professor, サイクロトロン・ラジオアイソトープセンター, 教授 (10221144)
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| Co-Investigator(Kenkyū-buntansha) |
UESAKA Tomohiro University of Tokyo, Center for Nuclear Study, Graduate School of Science, Lecturer, 大学院・理学系研究科・附属原子核科学研究センター, 講師 (60322020)
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| Project Period (FY) |
2001 – 2003
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| Keywords | deuteron breakup / Coulomb breakup / neutron capture / astrophysical reaction / nuclear synthesis / three-body reaction mechanism |
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| Research Abstract |
The Coulomb-breakup of unstable nuclei has recently attracted attention due to their astrophysical interest, but the limited data having large uncertainties hamper the challenge to various theoretical approaches. Expecting the deuteron can be used as an efficient probe for studying those problems, the detailed angular and energy distributions of breakup protons and neutrons in a wide angular range have been measured by constructing a new beam line at RCNP, Osaka University. It is remarkable that the distributions are well scaled among lighter targets but drastically change for ^<208>Pb. This feature is not reproduced by the simple pure-Coulomb breakup theory.
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