Parton Distribution Functions of Heavy Mesons on the Light Front

TL;DR

This paper calculates the parton distribution functions of heavy mesons using a light-front quantization approach, incorporating a confining potential and QCD evolution, to provide insights into their internal structure.

Contribution

It introduces a novel method combining basis light-front quantization with an effective Hamiltonian to evaluate heavy meson PDFs, including gluon and sea quark distributions.

Findings

Gluon and sea quark PDFs are dynamically generated from valence quark distributions.

The approach integrates confining potentials from light-front holography with QCD evolution.

Provides detailed parton structure insights of heavy mesons.

Abstract

The parton distribution functions (PDFs) of heavy mesons are evaluated from their light-front wave functions, which are obtained from a basis light-front quantization in the leading Fock sector representation. We consider the mass eigenstates from an effective Hamiltonian consisting of the confining potential adopted from light-front holography in the transverse direction, a longitudinal confinement, and a one-gluon exchange interaction with running coupling. We present the gluon and the sea quark PDFs which we generate dynamically from the QCD evolution of the valence quark distributions.