Speaker
Description
The equation of state of Quantum Chromodynamics has been in recent
years the focus of intense effort from first principle methods,
mostly lattice simulations, with particular interest to the finite
baryon density regime. Because of the sign problem, various
extrapolation methods have been used to reconstruct bulk properties
of the theory up to as far as $\mu_B/T \simeq 3.5$. However, said
efforts rely on the equation of state at vanishing baryon density
as an integration constant, which up to $\mu_B/T \simeq 2 - 2.5$
proves to be the dominant source of uncertainty at the level of
precision currently available. In this work we present the update of
our equation of state at zero net baryon density from 2014, performing
a continuum limit from lattices with $N_\tau=8,10,12,16$. We show
how the improved precision is translated in a lower uncertainty on
the extrapolated equation of state at finite chemical potential.
| Category | Theory |
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