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Pionic weak decay of the lightest double-Λ hypernucleus ΛΛ4H

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タイトル: Pionic weak decay of the lightest double-Λ hypernucleus ΛΛ4H
著者: Kumagai-Fuse, Izumi 著作を一覧する
Okabe, Shigeto 著作を一覧する
発行日: 2002年 7月22日
出版者: American Physical Society
誌名: Physical Review C
巻: 66
号: 1
開始ページ: 014003
出版社 DOI: 10.1103/PhysRevC.66.014003
抄録: The weak π- decay of ΛΛ4H is theoretically analyzed and compared with a recent BNL-E906 experiment. The two-body π- decay width of ΛΛ4H is calculated to be 0.69ΓΛ, and its branching ratio to the total π- decay is determined to be about 25%. The branching ratio of decay channels accompanied by a Λ particle to the total π- decay is about 43%. The calculated π- spectrum of ΛΛ4H has a broad peak around 100 MeV/c in the nuclear continuum region, whose value is inconsistent with the experimental result of a peak structure around 104 MeV/c. The other possible decays within the 104 MeV/c peak are reanalyzed, that is Λ-hypernuclear pair decays of Λ3H and Λ6He, which decay into excited states of 6Li.
Rights: Copyright © 2002 American Physical Society
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 岡部 成玄


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