arXiv:nucl-th/9708016·v1·Nuclear Theory
What QCD sum rules tell about the rho meson
Stefan Leupold (1)🇩🇪 · Wolfram Peters (1)🇩🇪 · Ulrich Mosel (1,2) ((1) Institut fuer Theoretische Physik, Universitaet Giessen, (2) Institute for Nuclear Theory, University of Washington, Seattle)🇩🇪
Abstract
Using a simple parametrization of Breit-Wigner type for the hadronic side of the QCD sum rule for mesons in vacuum as well as in a nuclear medium we explore the range of values for the mass and the width of the meson which are compatible with the operator product expansion.
Comments: 15 pages, Revtex, 2 figures included