Jet quenching and the gravity dual

TL;DR

This paper uses the gravity dual of a non-conformal gauge theory to compute how an energetic parton gains transverse momentum in strongly interacting matter, providing insights into jet quenching phenomena.

Contribution

It introduces a family of non-conformal gauge theories with matter, extending the AdS/CFT framework to study momentum broadening of partons in realistic QCD-like environments.

Findings

Calculated average transverse momentum squared as a function of temperature.

Compared results with conformal AdS/CFT predictions.

Provided insights into jet quenching in non-conformal theories.

Abstract

We compute the momentum broadening of an energetic parton as it moves through strongly interacting matter, using the gravity dual of a non conformal gauge theory with matter in the fundamental representation. Our approach defines a family of theories, all of which have logarithmic running of the couplings in the far IR but becomes almost conformal in the far UV. For a given set of degrees of freedom, we obtain average transverse momentum square of the parton as a function of temperature and compare with results obtained from the AdS/CFT correspondence.