2013年3月
Three-Body I > NN -> nNN Nonmesonic Weak Decay Process of I > Hypernuclei
FEW-BODY SYSTEMS
- 巻
- 54
- 号
- 1-4
- 開始ページ
- 103
- 終了ページ
- 110
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s00601-012-0370-x
- 出版者・発行元
- SPRINGER WIEN
The fundamental motivation to study the non-mesonic weak decay (NMWD) of I > hypernuclei is that it provides the unique channel for the information of the baryon-baryon weak interaction in SU3 (f) group. The relative strength of the two main channels of NMWD whose decay processes are the I > p -> np and I > n -> nn has been the long standing puzzle during last several decades. The puzzling status has been settled down recently with the I" (n) / I" (p) value converging to . The large experimental values of I" (n) / I" (p) of the previous measurements turned out to be due to the surprisingly large contribution of the competing three-body NMWD, I > NN -> nNN process. This paper discusses about the first measurement of the branching ratio of the three-body NMWD process and the renormalized intra-nuclear cascade method adopted to disentangle the contribution of the three-body process out of those due to final state interaction. And the prospects of the more accurate measurement of the three-body process also are presented.
- リンク情報
- ID情報
-
- DOI : 10.1007/s00601-012-0370-x
- ISSN : 0177-7963
- eISSN : 1432-5411
- Web of Science ID : WOS:000314063300017