Holographic melting and related properties of mesons in a quark gluon plasma

Details Holographic melting and related properties of mesons in a quark gluon plasma Holographic melting and related properties of mesons in a quark gluon plasma

2006-06-20

arxiv.org/abs/hep-th/0606195v3

Phys.Rev.D74:106008,2006

Physics

High Energy Physics

High Energy Physics - Theory

25 pages, 23 figures; v2: emphasised dependence of interquark distance on velocity, added plot, added references; v3: error in

Scientific paper

10.1103/PhysRevD.74.106008

We analyse mesons at finite temperature in a chiral, confining string dual. The temperature dependence of low-spin as well as high-spin meson masses is shown to exhibit a pattern familiar from the lattice. Furthermore, we find the dissociation temperature of mesons as a function of their spin, showing that at a fixed quark mass, mesons with larger spins dissociate at lower temperatures. The Goldstone bosons associated with chiral symmetry breaking are shown to disappear above the chiral symmetry restoration temperature. Finally, we show that holographic consideration imply that large-spin mesons do not experience drag effects when moving through the quark gluon plasma. They do, however, have a maximum velocity for fixed spin, beyond which they dissociate.

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