Abstract
The fundamental motivation to study the non-mesonic weak decay (NMWD) of hypernuclei is that it provides the unique means for study of baryon–baryon weak interaction in SU3 f symmetry group. The new channel of NMWD, namely the recently confirmed three-body channel, seems to have a surprisingly big branching ratio so that it makes its accurate measurement prerequisite of the baryon–baryon weak interaction study. We report a new result of \({\Gamma_{2N}(^{11}_{\Lambda} {\rm B})}\) from E508 experiment of KEK-PS, though preliminary yet, which agrees with the previous result of \({^{12}_{\Lambda}}\) C from the same experiment, those from FINUDA experiment and those of the recent theoretical predictions.
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H. Bhang acknowledges supports from NRF(2010-0024521) and the WCU program of NRF(2008-070-C00015).
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Bhang, H., Ajimura, S., Aoki, K. et al. The Strong Three-body Weak Interaction Contribution in the Nonmesonic Weak Decay of p-shell Λ Hypernuclei. Few-Body Syst 54, 1239–1243 (2013). https://doi.org/10.1007/s00601-013-0640-2
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DOI: https://doi.org/10.1007/s00601-013-0640-2