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We study the effect of a thermal quark mass, m_T, on the chiral phasetransition and mesonic excitations in the light quark sector at finitetemperature in a simple chirally-symmetric model. We show that while nonzerom_T lowers the chiral condensate, the chiral transition remains of secondorder. It is argued that the mesonic excitations have large decay rate atenergies below 2m_T, owing to the Landau damping of the quarks and the van Hovesingularities of the collective modes.Comment: 5 pages, 6 figures, typos correcte

Chiral transition and mesonic excitations for quarks with thermal masses