Quark sea asymmetries of the octet baryons

TL;DR

This paper investigates the flavor asymmetries of the quark sea in octet baryons using the chiral constituent quark model, highlighting the significance of sea quarks at low Bjorken x values.

Contribution

It applies the QM to analyze quark sea asymmetries in octet baryons, incorporating Bjorken x dependence phenomenologically, which advances understanding of nonperturbative QCD effects.

Findings

Quark sea asymmetries are significant at low x.

The model qualitatively reproduces observed flavor asymmetries.

Sea quark effects influence the Gottfried integral.

Abstract

The effects of "quark sea" in determining the flavor structure of the octet baryons have been investigated in the chiral constituent quark model (\chiCQM). The \chiCQM is able to qualitatively generate the requisite amount of quark sea and is also known to provide a satisfactory explanation of the proton spin and related issues in the nonperturbative regime. The Bjorken scaling variable x has been included phenomenologically in the sea quark distribution functions to understand its implications on the quark sea asymmetries like \bar d(x)-\bar (x), \bar d(x)/\bar u(x) and Gottfried integral for the octet baryons. The results strengthen the importance of quark sea at lower values of x.