May 22 – 28, 2011
Centre Bonlieu
Europe/Zurich timezone

Towards the phase diagram of QCD

Not scheduled
1m
Théâtre National (Centre Bonlieu)

Théâtre National

Centre Bonlieu

France
Board: 158
Poster QCD phase diagram

Speaker

Rainer Stiele (Institute for Theoretical Physics, Heidelberg University)

Description

Lattice computations as well ab initio continuum QCD calculations show a broad crossover for both chiral symmetry restoration and the deconfinement transition at vanishing density. Particularly, the change of the order parameter for deconfinement, the Polyakov loop, occurs in a rather broad temperature interval. In contrast, current Polyakov loop extended effective models show steeper slopes in a smaller transition region. Moreover, the critical temperatures show some dependence on the chosen Polyakov loop potential. We qualitatively improve these models towards full QCD by adjusting the Polyakov loop potential to the full glue potential of continuum ab initio computations. We present results for the phase structure of QCD at finite density derived from these improved models.

Primary author

Rainer Stiele (Institute for Theoretical Physics, Heidelberg University)

Co-authors

Prof. Jan M. Pawlowski (Institute for Theoretical Physics, Heidelberg University) Prof. Jürgen Schaffner-Bielich (Institute for Theoretical Physics, Heidelberg University) Mrs Lisa Marie Haas (Institute for Theoretical Physics, Heidelberg University)

Presentation materials