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

doi:10.1016/s0375-9474(00)00113-5

Mesonic and non-mesonic decay widths of ¹²_ΛC

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

SCI - Physics

Research output: Contribution to journal › Article › peer-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 ¹²_ΛC 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 language	English
Pages (from-to)	281-284
Number of pages	4
Journal	Nuclear Physics A
Volume	670
Issue number	1-4
DOIs	https://doi.org/10.1016/s0375-9474(00)00113-5
Publication status	Published - 2000 May 8

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Mesonic and non-mesonic decay widths of ¹²_ΛC. / Outa, H.; Ajimura, S.; Aoki, K.; Bhang, H.; Hasegawa, T.; Hashimoto, O.; Hotchi, H.; Kim, Y. D.; Kishimoto, T.; Maeda, K.; Noumi, H.; Ohta, Y.; Omata, K.; Park, H.; Sato, Y.; Sekimoto, M.; Shibata, T.; Takahashi, T.; Youn, M.

In: Nuclear Physics A, Vol. 670, No. 1-4, 08.05.2000, p. 281-284.

Research output: Contribution to journal › Article › peer-review

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title = "Mesonic and non-mesonic decay widths of 12ΛC",

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.",

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

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T1 - Mesonic and non-mesonic decay widths of 12ΛC

AU - Outa, H.

AU - Ajimura, S.

AU - Aoki, K.

AU - Bhang, H.

AU - Hasegawa, T.

AU - Hashimoto, O.

AU - Hotchi, H.

AU - Kim, Y. D.

AU - Kishimoto, T.

AU - Maeda, K.

AU - Noumi, H.

AU - Ohta, Y.

AU - Omata, K.

AU - Park, H.

AU - Sato, Y.

AU - Sekimoto, M.

AU - Shibata, T.

AU - Takahashi, T.

AU - Youn, M.

PY - 2000/5/8

Y1 - 2000/5/8

N2 - 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.

AB - 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.

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