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arXiv · hep-ph/0310027

An Interacting Parton Model for Quark and Anti-quark distributions in the Baryon

V. John·G. S. Krishnaswami·S. G. Rajeev
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Abstract

In this paper we study a 1+1 dimensional relativistic parton model for the structure of baryons. The quarks and anti-quarks interact through a linear potential. We obtain an analytic formula for the isospin averaged valence quark distribution in the chiral and large Nc limits. The leading 1/Nc and non-zero current quark mass corrections are estimated. Then we extend this model to include `sea' and anti-quarks. We find that the anti-quark content is small at a low value of Q^2. Using these distributions as initial conditions for Q^2 evolution, we compare with experimental measurements of the structure function xF_3(x,Q^2) and find reasonable agreement. The only parameters we can adjust are the fraction of baryon momentum carried by valence quarks and the initial scale Q_0^2.

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V. John, G. S. Krishnaswami, S. G. Rajeev. 2003-10-01. An Interacting Parton Model for Quark and Anti-quark distributions in the Baryon. https://doi.org/10.1016/s0370-2693(00)00808-x

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