What QCD sum rules tell about the rho meson

Abstract

Using a simple parametrization of Breit-Wigner type for the hadronic side of the QCD sum rule for $\rho$ mesons in vacuum as well as in a nuclear medium we explore the range of values for the mass and the width of the $\rho$ meson which are compatible with the operator product expansion.

15 pages, Revtex, 2 figures included

References in corpus (3)

• Current correlation functions, QCD sum rules and vector mesons in baryonic matter
• Rho Meson Propagation and Dilepton Enhancement in Hot Hadronic Matter
• P-Wave Polarization of the $\rho$-Meson and the Dilepton Spectrum in Dense Matter

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