Holography and quark-gluon plasmas; Gauge-gravity correspondence; Phenomenological Models
Issue Date
2011-08
Publisher
SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Citation
JOURNAL OF HIGH ENERGY PHYSICS 1107:008,2011
Abstract
We study the baryon density dependence of the vector meson spectrum using the D4/D6 system together with the compact D4 baryon vertex. We find that the vector meson mass decreases almost linearly in density at low density for small quark mass, but saturates to a finite non-zero value for large density. We also compute the density dependence of the eta' mass and the eta' velocity. We find that in medium, our model is consistent with the GMOR relation up to a few times the normal nuclear density. We compare our hQCD predictions with predictions made based on hidden local gauge theory that is constructed to model QCD.