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Volume 336 - XIII Quark Confinement and the Hadron Spectrum (Confinement2018) - D: Deconfinement
Towards a precise determination of the equation of state of QCD at high-temperature
M. Dalla Brida,* L. Giusti, M. Pepe
*corresponding author
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Pre-published on: 2019 September 12
Published on: 2019 September 26
We present preliminary results towards a fully non-perturbative determination of the equation of state of QCD at very high-temperatures, $T\approx 3-80\,{\rm GeV}$. The key ingredient is the lattice formulation of QCD in a moving reference frame, which allows us for a neat determination of the entropy density from simple expectation values of the momentum-components of the energy-momentum tensor. For the computation we employ $N_{\rm f}=3$ flavours of non-perturbatively O($a$)-improved Wilson-fermions. We present an analysis of the O($a$)-improvement of the expectation values entering the determination, and show how these can be accurately computed in simulations.
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