A note on the velocity of holographic long-lived mesons
Jonathan P. Shock, Javier Tarrio
TL;DR
This paper investigates the propagation speed of vector mesons in a holographic model with finite baryon density, analyzing quasinormal modes of gauge field fluctuations on probe D7-branes in a black D3-brane background.
Contribution
It provides a detailed analysis of the dispersion relations and propagation velocities of holographic mesons at large momenta in a finite density setting.
Findings
Holographic mesons exhibit specific dispersion relations at large momenta.
The propagation speed of mesons depends on the baryon density and other parameters.
The study offers insights into meson dynamics in strongly coupled gauge theories.
Abstract
We study fluctuations of a U(1) gauge field on the worldvolume of Nf probe D7-branes in the background of Nc black D3-branes with a finite baryon density. The choice of mode corresponds to vector mesons in the dual gauge theory whose mass and lifetime can be determined by a study of the quasinormal modes. The speed of propagation of these holographic mesons at large momenta is studied from the dispersion relations of the quasinormal modes of the system.
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