The QCD equation of state from improved staggered fermions

Schmidt-Sonntag C (2009)
arXiv:0906.4000.

Preprint | Englisch
 
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Abstract / Bemerkung
We calculate the equation of state in 2+1 flavor QCD at finite temperature with physical strange quark mass and almost physical light quark masses using lattices with temporal extent $N_{\tau}=8$. Calculations have been performed with two different improved staggered fermion actions, the asqtad and p4 actions. Overall, we find good agreement between results obtained with these two $O(a^2)$ improved staggered fermion discretization schemes. A comparison with earlier calculations on coarser lattices is performed to quantify systematic errors in current studies of the equation of state. We also present results for observables that are sensitive to deconfining and chiral aspects of the QCD transition on $N_\tau=6$ and 8 lattices. We find that deconfinement and chiral symmetry restoration happen in the same narrow temperature interval.
Erscheinungsjahr
2009
Zeitschriftentitel
arXiv:0906.4000
Page URI
https://pub.uni-bielefeld.de/record/2963327

Zitieren

Schmidt-Sonntag C. The QCD equation of state from improved staggered fermions. arXiv:0906.4000. 2009.
Schmidt-Sonntag, C. (2009). The QCD equation of state from improved staggered fermions. arXiv:0906.4000
Schmidt-Sonntag, C. (2009). The QCD equation of state from improved staggered fermions. arXiv:0906.4000.
Schmidt-Sonntag, C., 2009. The QCD equation of state from improved staggered fermions. arXiv:0906.4000.
C. Schmidt-Sonntag, “The QCD equation of state from improved staggered fermions”, arXiv:0906.4000, 2009.
Schmidt-Sonntag, C.: The QCD equation of state from improved staggered fermions. arXiv:0906.4000. (2009).
Schmidt-Sonntag, Christian. “The QCD equation of state from improved staggered fermions”. arXiv:0906.4000 (2009).

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