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ZICOS : New project for neutrinoless double beta decay experiment using zirconium complex in liquid scintillator
https://mue.repo.nii.ac.jp/records/487
https://mue.repo.nii.ac.jp/records/487408854b1-d414-4966-bf91-5f936bc7308c
名前 / ファイル | ライセンス | アクション |
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ZICOS : New project for neutrinoless double beta decay experiment using zirconium complex in liquid scintillator (10.0 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2016-02-01 | |||||
タイトル | ||||||
タイトル | ZICOS : New project for neutrinoless double beta decay experiment using zirconium complex in liquid scintillator | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ニュートリノ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ニュートリノを放出しない2重ベータ崩壊 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | マヨラナ質量 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ジルコニウム | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 液体シンチレータ | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Neutrino | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Neutrinoless Double Beta Decay | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Majorana Mass | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Zirconium | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Liquid Scintillator | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
FUKUDA, Yoshiyuki
× FUKUDA, Yoshiyuki× Narengerile× OBATA, Akira× MORIYAMA, Shigetaka× OGAWA, Izumi× GUNJI, Takahiro× TSUKADA, Satoru× HAYAMI, Ryohei |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A liquid scintillator containing a zirconium β-keto ester complex has been developed for the Zirconium COmplex in liquid Scintillator (ZICOS) experiment which is new project of neutrinoless double beta decay search. We are aiming to develop a detector which has a good energy resolution (3.5% at 3.35 MeV), a large light yield (60% that of BC505) and a low background rate (0.1 counts/tonne・year) with several hundred kg of 96Zr isotope, so we have investigated the zirconium β-keto ester complexes such as tetrakis (isopropyl acetoacetato) zirconium and tetrakis (ethyl acetoacetato) zirconium, which have high solubility (over 30 wt.%)in anisole. We measured the performance of liquid scintillator containing these zirconium β-keto ester complexes, and obtained 48.7+-7.1% of the light yield of BC505 and the energy resolution of 4.1+-0.6% at 3.35 MeV assuming 40% photo coverage of the photomultiplier in the detector. This results reached our initial goal, so we estimated that ZICOS experiment should be sensitive to <mV> < 0.2 - 0.3 eV assuming gA = 1.25, gPP = 1.11 and QRPA model, if a radius of the balloon is 1.5 m and the balloon is filled with a liquid scintillator containing 10 wt.% concentration of a zirconium β-keto ester complex with an enriched 96Zr. |
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書誌情報 |
宮城教育大学紀要 en : Bulletin of Miyagi University of Education 巻 50, p. 135-143, 発行日 2016-01-29 |
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出版者 | ||||||
出版者 | 宮城教育大学 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13461621 |