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

TL;DR

This paper investigates the sea quark content of octet baryons using an extended chiral constituent quark model that includes five-quark Fock states, predicting flavor asymmetries and quark probabilities.

Contribution

It introduces a model incorporating intrinsic five-quark components to predict sea quark distributions in octet baryons, extending previous approaches.

Findings

Predicted sea quark probabilities in various baryons.

Reproduced known flavor asymmetry of the nucleon sea.

Provided insights into intrinsic five-quark contributions.

Abstract

Sea quark contents 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 $\bar{d}-\bar{u}$, is used as input to predict the probabilities of $\bar{u}$, $\bar{d}$ and $\bar{s}$ in the nucleon, $\Lambda$, $\Sigma$ and $\Xi$ baryons, due to the intrinsic five-quark components in the baryons wave functions.