Measurement of the Decay Asymmetry Parameters in $Λ_c^+ \to Λπ^+$ and $Λ_c^+ \to Σ^+π^0 $

Details Measurement of the Decay Asymmetry Parameters in $Λ_c^+ \to Λπ^+$ and $Λ_c^+ \to Σ^+π^0 $ Measurement of the Decay Asymmetry Parameters in $Λ_c^+ \to Λπ^+$ and $Λ_c^+ \to Σ^+π^0 $

1995-02-09

arxiv.org/abs/hep-ex/9502004v1

Phys.Lett.B350:256-262,1995

Physics

High Energy Physics

High Energy Physics - Experiment

11 pages including the figures. Uses REVTEX and psfig macros. Figures as uuencoded postscript. Also available as http://w4.l

Scientific paper

10.1016/0370-2693(95)00280-X

We have measured the weak decay asymmetry parameters ($\aLC $) for two \LC\ decay modes. Our measurements are $\aLC = -0.94^{+0.21+0.12}_{-0.06-0.06} $ for the decay mode $\Lambda_c^+ \to \Lambda\pi^+ $ and $\aLC = -0.45\pm 0.31 \pm 0.06$ for the decay mode $\Lambda_c \to \Sigma^+\pi^0 $. By combining these measurements with the previously measured decay rates, we have extracted the parity-violating and parity-conserving amplitudes. These amplitudes are used to test models of nonleptonic charmed baryon decay.

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