Holography and charmonium structure in a finite density plasma

TL;DR

This paper extends holographic models of charmonium to finite density plasmas, analyzing how density and temperature affect quark-antiquark interactions and dissociation, aligning with spectral function results.

Contribution

It introduces a holographic approach to study charmonium in finite density plasmas, incorporating both density and temperature effects on quark-antiquark potential and dissociation.

Findings

Density and temperature jointly influence quark-antiquark potential.

Results are consistent with spectral function analyses.

Dissociation behavior is effectively modeled in finite density conditions.

Abstract

It has recently been proposed that the extra dimension in holographic models for charmoniun is related to its internal structure. Representing the interaction between the quark anti-quark pair by a string inside the background used in these models, the linear term of the Cornell potential was obtained. More than that, the dissociation in the thermal medium is also described in a consistent way. Here we extend this study to the case of a plasma with finite density. The combined effects of density and temperature are analyzed from the point of view of quark anti-quark interaction and the results obtained are consistent with the ones derived previously using spectral functions.