2010 Fiscal Year Final Research Report
Study of the EC and bound state β decay and its half-life on the highly charged ions.
| Project/Area Number |
19204023
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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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 | Saitama University |
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Principal Investigator |
SUZUKI Takeshi Saitama University, 大学院・理工学研究科, 教授 (10196842)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAGUCHI Takayuki 埼玉大学, 大学院・理工学研究科, 准教授 (10375595)
OHTUBO Takashi 新潟大学, 大学院・自然科学研究科, 准教授 (70262425)
IZUMIKAWA Takuji 新潟大学, アイソトープ総合センター, 准教授 (60282985)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 多価イオン状態核 / EC崩壊 / 束縛状態β崩壊 / 束縛状態α崩壊 |
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| Research Abstract |
In order to test the M-dependence of T_<Lab> required by the "neutrino hypothesis" we investigated the EC decay of H-like ^<122>I^<52+> ions. They exhibit a well-pronounced modulation with a period of T_<Lab> ~6s superimposed on the exponential decay. This period, being in perfect agreement to the predicted scaling with the mass of the parent ion M, corroborates the "neutrino hypothesis", if verified in the final data evaluation. The data analysis on the EC decay of He-like ^<142>Pm^<60+> is in progress.
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