出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present preliminary results for the correlation- and spectral functions of different meson
channels on the lattice. The main focus lies on gaining control over cut-off as well as on the
finite-volume effects. Extrapolations of screening masses above the deconfining temperature are
guided by the result of the free (T = ¥) case on the lattice and in the continuum. We study the
quenched non-perturbatively improved Wilson-clover fermion as well as the hypercube fermion
action which might show less cut-off effects.
