Speaker
Dr
Giorgio Torrieri
(JW Goethe Universitat, Frankfurt)
Description
We examine the nuclear liquid-gas phase transition at large number of colors (N_c) within the framework of the Van Der Waals (VdW) model. We argue that the VdW equation is appropriate at describing inter-nucleon forces , and discuss how each parameter scales with N_c. We demonstrate that N_c=3 is not large with respect to the other dimensionless scale relevant to baryonic matter, the number of neighbours in a dense system. Consequently, we show that the
liquid-gas phase transition looks dramatically different at N_c
-> infinity with respect of our world: The critical point
temperature becomes of the order of L_qcd rather than below it. The critical point density becomes of the order of the baryonic density, rather than an order of magnitude below it. These are precisely the characteristics usually associated with the ``Quarkyonic phase''. We therefore argue that at large N_c the nuclear liquid phase coincides with the conjectured quarkyonic phase, although the two are thought to occur at very different scales in our world.
Primary author
Dr
Giorgio Torrieri
(JW Goethe Universitat, Frankfurt)
Co-author
Dr
Jorge Noronha
(Columbia university)
