Darmstadt 2008 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 34: Postersitzung

HK 34.77: Poster

Donnerstag, 13. März 2008, 14:00–16:00, Poster C3

Improved QCD sum rule analysis for vector mesons — •Youngshin Kwon and Wolfram Weise — TU Muenchen, Garching, Germany

A QCD sum rule analysis of the first two moments of vector meson spectral function in vacuum and in nuclear medium is performed. Several in-medium spectral functions calculated from different models are used as input on the phenomenological side of the QCD sum rule equations. Assuming that the scale which delineates resonance and continuum region is identified with the chiral symmetry breaking scale 4 π f_π, we can test the pattern of chiral symmetry restoration and scaling tendencies such as Brown-Rho scaling.