Sea-quark flavor content of octet baryons and intrinsic five-quark Fock states

摘要

Sea-quark content of the octet baryons are investigated by employing an extended chiral constituent quark approach, which embodies higher Fock five-quark components in the baryons wave functions. The well-known flavor asymmetry of the nucleon sea d̅ −u̅ , is used as input to predict the probabilities of u̅ , d̅ , and s̅ in the nucleon, Λ, Σ, and Ξ baryons, due to the intrinsic five-quark components in the baryons wave functions.