pith. sign in

arxiv: 0906.4099 · v1 · pith:BWDZE47Onew · submitted 2009-06-22 · ✦ hep-ph · hep-th· nucl-th

Constraints on AdS/CFT Gravity Dual Models of Heavy Ion Collisions

classification ✦ hep-ph hep-thnucl-th
keywords collisionsmodelsconstraintscurrentdensitydualfive-foldgravity
0
0 comments X
read the original abstract

We show that the five-fold constraints due to (1) the observed nuclear modification of heavy quark jets measured via non-photonic electrons $R_{AA}^e(p_T \sim 6 {\rm GeV})$ in central Au+Au collisions at 200 AGeV, (2) the "perfect fluid' elliptic transverse flow of low transverse momenta pions, $v_2(p_T\sim 1 {\rm GeV})$ reported for noncentral collisions, (3) the global pion rapidity density $dN_\pi/dy$, (4) the lattice QCD entropy density deficiency, $S/S_{SB}$, of strongly coupled Quark-Gluon Plasmas (sQGP), and (5) a causal requirement are analytically correlated in a class of gauge/string gravity dual models of sQGP dynamics. Current RHIC/BNL and lattice QCD data are found to be remarkably compatible with these models if the t'Hooft and Gauss-Bonnet coupling parameters lie in the range $\lambda\approx 10-25$ and $0< \lambda_{GB}< 0.09$. In addition, the observed five-fold correlation appears to favor color glass condensate over Glauber initial conditions within current systematic errors.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.