Münster 2002 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 9: Poster Session: Theory
HK 9.5: Poster
Tuesday, March 12, 2002, 10:30–12:45, Foyer Chemie
Note on finite temperature sum rules for vector and axial-vector spectral functions — •Eugenio Marco1, Ralf Hofmann2, and Wolfram Weise1,3 — 1Physik-Department, Technische Universität München — 2Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), — 3ECT*, Villazzano (Trento), Italy
An updated analysis of vector and axial-vector spectral functions is presented. The resonant contributions to the spectral integrals are shown to be expressible as multiples of 4 π2 fπ2, encoding the scale of spontaneous chiral symmetry breaking in QCD. Up to order T2 this behavior carries over to the case of finite temperature.
Work supported in part by BMBF, GSI and the Alexander von Humboldt Foundation.