TY - JOUR
T1 - Flavoring the quark-gluon plasma with charm
AU - Torrieri, Giorgio
AU - Noronha, Jorge
N1 - Funding Information:
We would like to thank C. Nattrass and E. Bruna for elucidating the experimental charm measurement capabilities at the LHC. We also thank O. Linnyk, M. Gyulassy, M. Cheng, I. Mishustin, C. Greiner, D. Rischke and W. Zajc for discussions. G.T. was (financially) supported by the Helmholtz International Center for FAIR within the framework of the LOEWE program (Landesoffensive zur Entwicklung Wissenschaftlich-konomischer Exzellenz) launched by the State of Hesse. J.N. is supported by the US-DOE Nuclear Science Grant No. DE-FG02-93ER40764 . G.T. thanks M. Gyulassy and Columbia University for the hospitality provided when this work was done.
PY - 2010/7/5
Y1 - 2010/7/5
N2 - 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.
AB - 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.
KW - Deconfinement
KW - Heavy flavor
KW - Non-perturbative QCD
KW - Particle multiplicity
KW - Polyakov loops
KW - Quark-gluon plasma
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U2 - 10.1016/j.physletb.2010.05.071
DO - 10.1016/j.physletb.2010.05.071
M3 - Article
AN - SCOPUS:77953650313
SN - 0370-2693
VL - 690
SP - 477
EP - 482
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 5
ER -