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

被引:171
作者
Peeters, Kasper
Zamaklar, Marija
Sonnenschein, Jacob
机构
[1] MPI Gravitat Phys, D-14476 Golm, Germany
[2] Tel Aviv Univ, Sch Phys & Astron, Raymond & Beverly Sackler Fac Exact Sci, IL-69978 Tel Aviv, Israel
关键词
D O I
10.1103/PhysRevD.74.106008
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We analyze 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 considerations 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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页数:14
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