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arXiv · 0809.2056

A Study of Hadron Deformation in Lattice QCD

Constantia Alexandrou·Giannis Koutsou
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Abstract

We develop the formalism for the evaluation of density-density correlators in lattice QCD that includes techniques for the computation of the all-to-all propagators involved. A novel technique in this context is the implementation of the one-end trick in the meson sector. Density-density correlators provide a gauge invariant definition for the hadron wave function and yield information on hadron deformation. We evaluate density-density correlators using two degenerate flavors of dynamical Wilson fermions for the pion, the rho-meson, the nucleon and the $Δ$. Using the one-end trick we obtain results that clearly show deformation of the rho-meson.

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Constantia Alexandrou, Giannis Koutsou. 2008-09-11. A Study of Hadron Deformation in Lattice QCD. https://doi.org/10.1103/physrevd.78.094506

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