Model independent constraints from vacuum and in-medium QCD Sum Rules

Details Model independent constraints from vacuum and in-medium QCD Sum Rules Model independent constraints from vacuum and in-medium QCD Sum Rules

1999-01-21

arxiv.org/abs/nucl-th/9901058v1

Eur.Phys.J. A4 (1999) 225-228

Physics

Nuclear Physics

Nuclear Theory

6 pages, 2 figures, to appear in Eur. Phys. J. A

Scientific paper

10.1007/s100500050223

We discuss QCD sum rule constraints based on moments of vector meson spectral distributions in the vacuum and in a nuclear medium. Sum rules for the two lowest moments of these spectral distributions do not suffer from uncertainties related to QCD condensates of dimension higher than four. We exemplify these relations for the case of the omega meson and discuss the issue of in-medium mass shifts from this viewpoint.

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