Study on the weak decay process of neutron-rich Lambda hypernuclei with the photon beams
| Project/Area Number |
18K13554
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
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| Research Institution | Tohoku University |
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Principal Investigator |
NAGAO Sho 東北大学, 理学研究科, 助教 (30781710)
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| Project Period (FY) |
2018-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | ストレンジネス核物理 / ハイパー核 / 弱崩壊 / 高時間分解能 / 原子核 / Λハイパー核 / 寿命 |
|---|
| Outline of Final Research Achievements |
A goal of this research was measurements of the hypernuclear weak decay. The investigation would proceed with hypernuclear studies if we measure hyper-hydrogen nuclei, which is difficult to generate with the standard reaction e.g, the (pi, K) or the (K, pi) reactions.
The investigation tried to generate hyper-hydrogen nuclei with a new reaction method (γ, K+) reaction. We successfully developed a new TOF counter for a Kaon identification and a high time resolution detector for measure decay particles. Those detectors are essential detectors to expand hypernuclear experiments with the photon beams.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究によってガンマ線を用いたハイパー核生成実験に必要なセットアップが完成したことにより、継続的なハイパー核実験が可能になりつつある。より広範囲な領域でハイパー核研究が展開できるようになることで、Λハイパー核というΛ粒子を含んだ核子多体系への理解が進むと期待できる。
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Report
(3 results)
Research Products
(26 results)
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[Journal Article] Decay pion spectroscopy: A new approach2019
Author(s)
Margaryan A.、Ajvazyan R.、Grigoryan N.、Kakoyan V.、Khachatryan V.、Vardanyan H.、Zhamkochyan S.、Achenbach P.、Pochodzalla J.、Nakamura S.N.、Nagao S.、Toyama Y.、Annand J.R.M.、Livingston K.、Montgomery R.
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Journal Title
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume: 935
Pages: 40-50
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Precision beam energy measurement by undulator radiation at MAMI2018
Author(s)
P. Klag, P. Achenbach, M. Biroth, T. Gogami, P. Herrmann, M. Kaneta, Y. Konishi, W. Lauth, S. Nagao, S. N. Nakamura, J. Pochodzalla, J. Roser, Y. Toyama
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Journal Title
Project Status Report 2018 for the Graduiertenkolleg (GRK) 2128 AccelencE
Volume: -
Related Report
Peer Reviewed / Int'l Joint Research
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