Flavoring the Quark-Gluon Plasma with Charm
Nuclear Theory
2014-11-20 v2 High Energy Physics - Experiment
High Energy Physics - Phenomenology
Nuclear Experiment
Abstract
We demonstrate that a Quark-Gluon Plasma (QGP) with a dilute admixture of heavy quarks has, in general, a lower speed of sound than a "pure" QGP without effects from heavy flavors. The change in the speed of sound is sensitive to the details of the theory, making the hydrodynamic response to "flavoring" a sensitive probe of the underlying microscopic dynamics. We suggest that this effect may be measured in ultrarelativistic heavy ion collisions by relating the event-by-event number of charm quarks to flow observables such as the average transverse momentum.
Cite
@article{arxiv.1004.0237,
title = {Flavoring the Quark-Gluon Plasma with Charm},
author = {Giorgio Torrieri and Jorge Noronha},
journal= {arXiv preprint arXiv:1004.0237},
year = {2014}
}
Comments
Accepted for publication, Phys.Lett.B Additional discussion, main arguments and conclusions unchanged