Non-critical, near extremalAdS6background as a holographic laboratory of four dimensional YM theory

We study certain properties of the low energy regime of a theory whichresembles four dimensional YM theory in the framework of a non-criticalholographic gravity dual. We use for the latter the near extremal $AdS_6$non-critical SUGRA. We extract the glueball spectra that associates with thefluctuations of the dilaton, one form and the graviton and compare the resultsto those of the critical near extremal $D4$ model and lattice simulations. Weshow an area law behavior for the Wilson loop and screening for the 't Hooftloop. The Luscher term is found to be $-{3/24}\frac {\pi}{L}$. We derive theRegge trajectories of glueballs associated with the spinning folded stringconfigurations.Comment: 25 pages, JHEP styl