On Qcd Sum Rules for Vector Mesons in Nuclear Medium *
نویسنده
چکیده
Vector mesons show up in the electromagnetic current-current correlator. QCD sum rules provide a constraint on hadronic models for this correlator. This constraint is discussed for the case of finite nuclear density concerning the longitudinal as well as the transverse part of the current-current correlator at finite three-momentum. PACS numbers: 24.85.+p, 21.65.+f, 12.38.Lg, 14.40.Cs
منابع مشابه
QCD sum rule analysis for light vector and axial - vector mesons in vacuum and nuclear matter ∗ Stefan Leupold
Extending previous work we study the constraints of QCD sum rules on mass and width of light vector and axial-vector mesons in vacuum and in a medium with finite nuclear density. For the latter case especially the effect of nuclear pions leading to vector–axial-vector mixing is included in the analysis. PACS numbers: 14.40.Cs, 21.65.+f, 11.30.Rd, 24.85.+p
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