9 papers
Hybrid hadrons at rest and on the light front
Edward Shuryak, Ismail Zahed
We present a unified description of heavy hybrid hadrons based on a constituent-gluon picture embedded in the Born-Oppenheimer (BO) framework. In this approach, the gluonic excitat…
Chiral Structure and Selection Rules in Light-Front Nucleon-Pentaquark Mixing
Fangcheng He, Edward Shuryak, Wan Wu +1
We present a light-front Hamiltonian analysis of nucleon-pentaquark mixing induced by - and -type transition operators in a fully Pauli-consistent five-quark basis. The pen…
The color force acting on a quark in the pion and nucleon
Wei-Yang Liu, Edward Shuryak, Ismail Zahed
In the Operator Product Expansion (OPE) of hard scattering amplitudes, the twist-3 operators describe local colored Lorentz forces acting on a quark, thereby providing a measure of…
Glueballs, Constituent Gluons and Instantons
Edward Shuryak, Ismail Zahed
We present a constituent two-gluon description of the lowest-lying glueball states in pure Yang--Mills theory, calibrated against quenched lattice results. The framework incorporat…
The Hadron-Parton Bridge, From the QCD Vacuum to Partons
Edward Shuryak, Ismail Zahed
Quantum Chromodynamics (QCD) exhibits complementary descriptions of hadrons: a rest-frame picture based on confinement, chiral symmetry breaking and interquark forces, and a high-e…
Pentaquarks on the light front, and their mixture with baryons
Nicholas Miesch, Edward Shuryak, Ismail Zahed
In previous papers we developed the light front formulation for Hamiltonians and wave functions (WFs) for mesons and baryons, with both confinement and chiral symmetry breaking. Fo…