Non critical holographic models of the thermal phases of QCD
| dc.creator | Mazo, Victoria | |
| dc.creator | Sonnenschein, Jacob | |
| dc.date | 2007-11-27 | |
| dc.date | 2008-01-16 | |
| dc.date.accessioned | 2026-07-07T11:38:56Z | |
| dc.date.available | 2026-07-07T11:38:56Z | |
| dc.description | We analyze the thermal phases of a non critical holographic model of QCD. The model is based on a six dimensional background of $N_c$ non extremal D4 branes wrapping a spacial circle of radius $R$ and the compactified Euclidean time direction of radius $β=1/T$. We place in this background stacks of $N_f$ D4 and anti-D4 flavor probe branes with a separation distance $L$ at large radial direction. %The dual theory is a 4+1 dimensional $SU(N_c)$ gauge theory %compactified on a radius $R$ with anti-periodic boundary conditions for the fermions. The analysis of the DBI effective action yields the following phase diagram: At low temperature the system is in a confining phase with broken chiral symmetry. In the high temperature deconfining phase chiral symmetry can be either restored for $L>L_c=1.06 R$ or broken for $L<L_c$. All of these phase transitions are of first order. We analyze the spectrum of the low-spin and high-spin mesons. High spin mesons above certain critical angular momentum ``melt''. We detect (no) drag for (mesons) quarks moving in hot quark-gluon fluid. The results resemble the structure and properties of the thermal Sakai-Sugimoto model derived in hep-th/0604161. | |
| dc.description | 11 figure minor corrections | |
| dc.identifier | https://arxiv.org/abs/0711.4273 | |
| dc.identifier | http://arxiv.org/abs/0711.4273 | |
| dc.identifier | JHEP0806:091,2008 | |
| dc.identifier | doi:10.1088/1126-6708/2008/06/091 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/199746 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Non critical holographic models of the thermal phases of QCD | |
| dc.type | text |