Pionic weak decay of the lightest double-Λ hypernucleus ΛΛ4H

Kumagai-Fuse, Izumi; Okabe, Shigeto

Physical Review C, 2002, 66(1), 014003

Permalink : https://hdl.handle.net/2115/17212

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アクセス権	open access
URI	https://hdl.handle.net/2115/17212
タイトル	Pionic weak decay of the lightest double-Λ hypernucleus ΛΛ4H
著者	著者名 Kumagai-Fuse, Izumi
著者	e-Rad_Researcher 70169134 著者名 Okabe, Shigeto
言語	英語
発行日	2002-07-22
出版者	American Physical Society
収録物名	Physical Review C
巻(号)	66(1)
ページ	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.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright © 2002 American Physical Society
PISSN	0556-2813
EISSN	1089-490X
関連情報	URI http://www.aps.org/
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevC.66.014003