Accelerated quarks and energy loss in confinement theory

TL;DR

This paper investigates the energy loss rate of accelerated quarks in holographic confinement models, revealing a universal lower bound determined by string tension, regardless of quark motion type.

Contribution

It introduces a holographic approach to quantify quark energy loss in confinement, establishing a universal lower bound linked to string tension for different quark motions.

Findings

ELR is bounded from below by the string tension.

Lower bounds are independent of quark motion type.

Results are consistent across different non-conformal models.

Abstract

We study the energy loss rate (ELR) of the accelerated quark in terms of the holographic models for the two different motions, linear acceleration and uniform rotation. They are examined by two different non-conformal models with confinement. We found in both models that the value of ELR is bounded from below by the string tension of the linear confinement potential between quark and anti-quark. The lower bounds of ELR are independent of the types of the motion of the quark. They are determined by the string tension at the world sheet horizon of the model. These results are obtained when the model has the diagonal background metric.