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Pionic weak decay of the lightest double-Λ hypernucleus ΛΛ4H
| 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 |
| Relation: | http://www.aps.org/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/17212 |
| 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)
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Submitter: 岡部 成玄
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