Study of hadron deformation in lattice QCD

被引：17
作者：
Alexandrou, Constantia [1 ]
Koutsou, Giannis [1 ]
机构：
[1] Univ Cyprus, Dept Phys, CY-1678 Nicosia, Cyprus
来源：
PHYSICAL REVIEW D | 2008年 / 78卷 / 09期
关键词：
D O I：
10.1103/PhysRevD.78.094506
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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 Delta. Using the one-end trick we obtain results that clearly show deformation of the rho meson.
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