Mesonic and non-mesonic decay widths of 12ΛC

H. Outa, S. Ajimura, K. Aoki, H. Bhang, T. Hasegawa, O. Hashimoto, H. Hotchi, Y. D. Kim, T. Kishimoto, K. Maeda, H. Noumi, Y. Ohta, K. Omata, H. Park, Y. Sato, M. Sekimoto, T. Shibata, T. Takahashi, M. Youn

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Results are reported on the precise measurement of the lifetime and the weak-decay branching ratios with charged particle(π- and proton) emission from 12ΛC formed via 12C(π+,K+) reaction. The π- mesonic decay width is consistent with the calculations including the pion wave function distortion effect. We observed large contribution of the neutron-stimulated decay widths, Γ(Λ + n → n + n), in the non-mesonic weak decay, which cannot be explained by the current theoretical calculations.

Original languageEnglish
Pages (from-to)281-284
Number of pages4
JournalNuclear Physics A
Volume670
Issue number1-4
DOIs
Publication statusPublished - 2000 May 8

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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