TY - GEN
T1 - QCD equation of state with improved precision from lattice simulations
AU - Parotto, Paolo
AU - Borsányi, Szabolcs
AU - Fodor, Zoltan
AU - Guenther, Jana N.
AU - Kara, Ruben
AU - Pásztor, Attila
AU - Ratti, Claudia
AU - Szabó, Kalman K.
N1 - Publisher Copyright:
© The Authors, published by EDP Sciences.
PY - 2024/6/26
Y1 - 2024/6/26
N2 - 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 µB/T 3.5 . However, said efforts rely on the equation of state at vanishing baryon density as an integration constant, which up to µB/T 2 − 2.5 proves to be the dominant source of uncertainty at the level of precision currently available. In this contribution we present the update of our equation of state at zero net baryon density from 2014, performing a continuum limit from lattices with Nτ = 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.
AB - 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 µB/T 3.5 . However, said efforts rely on the equation of state at vanishing baryon density as an integration constant, which up to µB/T 2 − 2.5 proves to be the dominant source of uncertainty at the level of precision currently available. In this contribution we present the update of our equation of state at zero net baryon density from 2014, performing a continuum limit from lattices with Nτ = 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.
UR - https://www.scopus.com/pages/publications/85211890770
UR - https://www.scopus.com/pages/publications/85211890770#tab=citedBy
U2 - 10.1051/epjconf/202429614007
DO - 10.1051/epjconf/202429614007
M3 - Conference contribution
AN - SCOPUS:85211890770
T3 - EPJ Web of Conferences
BT - 30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023
A2 - Bellwied, Rene
A2 - Geurts, Frank
A2 - Rapp, Ralf
A2 - Ratti, Claudia
A2 - Timmins, Anthony
A2 - Vitev, Ivan
PB - EDP Sciences
T2 - 30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023
Y2 - 3 September 2023 through 9 September 2023
ER -