We present our new results for the QCD equation of state at nonzero chemical potential at N_t=6 and compare them with N_t=4. We use the Taylor expansion method with terms up to sixth order in simulations with 2+1 flavors of improved asqtad quarks along a line of constant physics with m_l=0.1 m_s and approximately physical strange quark mass m_s.
@article{arxiv.0910.0276,
title = {QCD equation of state at non-zero chemical potential},
author = {The MILC Collaboration and S. Basak and A. Bazavov and C. Bernard and C. DeTar and W. Freeman and Steven Gottlieb and U. M. Heller and J. E. Hetrick and J. Laiho and L. Levkova and J. Osborn and R. Sugar and D. Toussaint},
journal= {arXiv preprint arXiv:0910.0276},
year = {2010}
}
Comments
7 pages, 10 figures, presented at Lattice 2008 (Nonzero Temperature and Density), College of William and Mary, Williamsburg, VA