Holographic melting of heavy baryons in plasma with gluon condensation

Abstract

We propose a Dirac-Born-Infeld ( DBI ) D5 vertex brane plus N c fundamental strings configuration to describe a baryon probe in strongly coupled gauge theory with gluon condensation at finite temperature via AdS/CFT correspondence. We investigate properties of this configuration in a dilaton deformed AdS 5 ×S 5 background, in which IIB string theory is dual to super Yang-Mills theory in a state with a constant self-dual gauge field (F mn = F * mn ) background. We find that for most values of temperature T and gluon condensation parameter q (q = π 2 < F mn F mn >), there always exists a screening length L s . The relation L s ∼ 1 T has been checked. We give the q dependence of L s . We calculate the boost velocity v(v = − tanh η) and angular velocity ω dependence of L s for a baryon probe, and obtain L s = L 0 * (1 − v 2 ) 1/4 for large v and L s ∼ ω −1 , which are consistent with those dependence relations in the point brane plus strings case, and find that the usual relations have been modified by q. We also calculate the mass of baryon and find T dependence of baryon mass.

Rotating mesons in the presence of higher derivative corrections from gauge–string duality

“…Similarly to our discussion of the potential in the static case, we find that in the rotating case for a particular value ω * such that ω * > ω max , corresponding to d * < d max , dissociation appears. Once dissociation has appeared we are left with a pair of straight strings whose potential vanishes for ω < ω * A string-junction holographic model of a probe baryon in finite temperature SYM dual to AdS-Schwarzschild black hole is studied in [36,37,38]. Therein, a relation between D5brane position, which plays the same role of a of the U-shaped string in our work, and quark separation is plotted.…”

Sakai-Sugimoto model in D0-D4 background

“…By introducing D7 probe branes into the background geometry, according to the proposal of Karch and Katz [13], flavors can also be introduced into these backgrounds, and then quark condensates and meson spectra can be studied [12,[14][15][16][17][18]. Also by introducing baryonic D5-branes, studies can be carried out on baryon properties in the glue condensates [19][20][21][22][23].…”