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Pionic weak decay of the lightest double-Λ hypernucleus ΛΛ4H

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Title: Pionic weak decay of the lightest double-Λ hypernucleus ΛΛ4H
Authors: Kumagai-Fuse, Izumi Browse this author
Okabe, Shigeto Browse this author →KAKEN DB
Issue Date: 22-Jul-2002
Publisher: American Physical Society
Journal Title: Physical Review C
Volume: 66
Issue: 1
Start Page: 014003
Publisher DOI: 10.1103/PhysRevC.66.014003
Abstract: 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
Type: article
Appears in Collections:情報基盤センター (Information Initiative Center) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 岡部 成玄

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