Chiral and deconfinement transitions in a magnetic background using the functional renormalization group with the Polyakov loop

Andersen, Jens O.; Naylor, William R.; Tranberg, Anders

doi:10.1007/JHEP04(2014)187

Chiral and deconfinement transitions in a magnetic background using the functional renormalization group with the Polyakov loop

Nov 8, 2013

19 pages

Published in:

JHEP 04 (2014) 187

Published: 2014

e-Print:

1311.2093 [hep-ph]

DOI:

10.1007/JHEP04(2014)187

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Abstract: (arXiv)

We use the Polyakov loop coupled quark-meson model to approximate low energy QCD and present results for the chiral and deconfinement transitions in the presence of a constant magnetic background

B

at finite temperature

T

and baryon chemical potential

\mu_B

. We investigate effects of various gluoni potentials on the deconfinement transition with and without a fermionic backreaction at finite

B

. Additionally we investigate the effect of the Polyakov loop on the chiral phase transition, finding that magnetic catalysis at low

\mu_B

is present, but weakened by the Polyakov loop.

Note:

17 pages and 8 figs. v2: added refs

Thermal Field Theory
Renormalization Group
Phase Diagram of QCD
background: magnetic
Polyakov loop: effect
meson quark: model
critical phenomena: chiral
Polyakov loop: coupling
potential: chemical
energy: low

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