2009 Fiscal Year Final Research Report
Isospin-spin responses in charge-exchange exothermic reactions
| Project/Area Number |
17002003
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| Research Category |
Grant-in-Aid for Specially Promoted Research
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
Mathematics and Physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SAKAI Hideyuki The University of Tokyo, 大学院・理学系研究科, 教授 (90030030)
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| Co-Investigator(Kenkyū-buntansha) |
YAKO Kenatro 東京大学, 大学院・理学系研究科, 助教 (50361572)
SHIMOURA Susumu 東京大学, 大学院・理学系研究科, 教授 (10170995)
UESAKA Tomohiro 東京大学, 大学院・理学系研究科, 准教授 (60322020)
KAWABATA Takahiro 京都大学, 大学院・理学系研究科, 准教授 (80359645)
IDEGUCHI Eiji 東京大学, 大学院・理学系研究科, 講師 (80360494)
MICHIMASA Shinichiro 東京大学, 大学院・理学系研究科, 助教 (80392140)
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| Co-Investigator(Renkei-kenkyūsha) |
OTA Shinsuke 東京大学, 大学院・理学系研究科, 助教 (60548840)
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| Project Period (FY) |
2005 – 2009
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| Keywords | スピン・アイソスピン応答 / 発熱型荷電交換反応 / 磁気分析器 |
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| Research Abstract |
Spin-isospin responses in highly excited state of nucleus are studied by the exothermic charge-exchange(CE) reaction with unstable beam in the time-like region. To realize the study the high resolution magnetic spectrometer SHARAQ was designed and constructed. The SHARAQ was installed in the RIBF of RIKEN Nishina Center. A search for a new spin mode was made and theβ+ isovector spin monopole resonance was found. The nuclear matrix elements(NME) for the 2v2βdecay, ^<48>Ca and ^<116>Cd, were studied by the (p,n) and (n,p) reactions. Obtained NMEs will play a decisive role in the determination of neutrino mass once 0v2β decay were found.
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