Finite T meson correlations and quark deconfinement

  • L. Kalinovsky
  • Published 2000

Abstract

A simple confining separable interaction Ansatz for the rainbow-ladder truncated quark Dyson-Schwinger equation and q̄q Bethe-Salpeter equation is used to study the spatial correlation modes π and ρ at finite temperature. The model is fixed by T = 0 properties and it implements dynamical chiral symmetry breaking and quark confinement. Transitions for deconfinement (Td) and chiral restoration (Tc) are identified. Above and below these transitions we study Mπ(T ) and fπ(T ), the 3-space transverse and longitudinal masses MT ρ (T ) and M L ρ (T ), and the partial widths of the transverse ρ due to both the electromagnetic decay ρ0 → e+e−, and the strong decay ρ → ππ. The strong width of the ρ decreases with T ; it falls to about 50% at Tc and vanishes some 25 MeV above Tc, thus leaving the ρ with only its narrow e +e− width. The simplest version of the model is used to compare the approach to the high T behavior M(T ) → 2πT found in lattice QCD simulations. Pacs Numbers: 11.10.St, 11.10.Wx, 12.38.Mh, 14.40.-n, 24.85.+p Typeset using REVTEX

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Cite this paper

@inproceedings{Kalinovsky2000FiniteTM, title={Finite T meson correlations and quark deconfinement}, author={L. Kalinovsky}, year={2000} }