Contributions of parity-violating baryon matrix elements to nonleptonic charmed-baryon decays

Baryon-baryon matrix elements of the parity-violating charm-changing weak Hamiltonian are calculated using the MIT bag model. The changes in thes- andp-wave amplitudes of Cabibbo-favored nonleptonic decays of charmed baryons due to these parity-violating baryon transition elements are in general not substantially significant. However, they can overwhelm or be comparable to the contributions arising from the parity-conserving matrix elements for some reactions such as thes-wave amplitude ofΛ _c ⁺ →Ξ ⁰ K ⁺ and Δ⁺⁺ K ^? and thep-wave amplitude ofΛ _c ⁺ →∑ ⁰π⁺.