Vector particle in the model of an instanton vacuum
Esaibegyan S. V. , Tamaryan S. N.
In an instanton "liquid" there is a mechanism for momentum transfer between quarks via this medium. This interaction allows one to describe the low-energy characteristics of the ρ meson (wp,/p) without going beyond the approximation which incorporates only zero modes. © 1995 American Institute of Physics.