What QCD sum rules tell about the rho meson

1997/08/08 by Stefan Leupold, W. Peters, Wolfram Peters +2 · 148 citations
Physics and Astronomy · #Hadron #High-Energy Particle Collisions Research #Meson #Nuclear physics #Operator (biology) #Operator product expansion #Parametrization (atmospheric modeling) #Particle physics #Particle physics theoretical and experimental studies #Physics #QCD sum rules #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Rho meson #Sum rule in quantum mechanics #hep-ph #nucl-th

paper · pdf · doi:10.1016/s0375-9474(97)00634-9

published in Nuclear Physics A 628(2), 311-324 (Elsevier BV) · 15 pages, Revtex, 2 figures included

arxiv created 1997/08/08 · openalex publication_date 1998/01/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

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

Citations

• Valid QCD sum rules for vector mesons in nuclear matter
• Dilepton production at SPS energies

Cited by

• The spectral function of the rho meson in nuclear matter
• Dilepton production and mT-scaling at BEVALAC/SIS energies