Gradient Correction to Photon Emission Rate at Strong Coupling
Nuclear Theory
2015-04-28 v3 High Energy Physics - Phenomenology
High Energy Physics - Theory
Nuclear Experiment
Abstract
We compute the correction to the photon emission rate in first order of shear components of fluid velocity gradients, , in near-equilibrium hydrodynamic plasma at strong coupling regime, using the real-time Schwinger-Keldysh formalism in AdS/CFT correspondence. Our result is an integral of an analytic expression. We observe that the gradient correction to the photon emission rate at strong coupling is about 0.3 - 0.4 times of the equilibrium rate in units of .
Cite
@article{arxiv.1409.7674,
title = {Gradient Correction to Photon Emission Rate at Strong Coupling},
author = {Kiminad A. Mamo and Ho-Ung Yee},
journal= {arXiv preprint arXiv:1409.7674},
year = {2015}
}
Comments
28 pages, 9 figures; references added; more discussion about the phenomenological importance of the gradient correction added in the Discussion section, published in PRD