We have measured the weak decay asymmetry parameters (αΛc) for two Λc+ decay modes. Our measurements are αΛc = −0.94−0.06−0.06+0.21+0.12 for the decay mode Λc+ → Λπ+ and αΛc = −0.45 ±0.31 ±0.06 for the decay mode Λc → Σ+ π0. 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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Bishai et al. (1995) studied this question.
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