Lattice simulations of the QCD chiral transition at real $\mu_B$ Article Swipe
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· 2022
· Open Access
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· DOI: https://doi.org/10.21468/scipostphysproc.6.002
· OA: W4293071827
Most lattice studies of hot and dense QCD matter rely on extrapolation from zero or imaginary chemical potentials. The ill-posedness of numerical analytic continuation puts severe limitations on the reliability of such methods. We studied the QCD chiral transition at finite real baryon density with the more direct sign reweighting approach. We simulate up to a baryochemical potential-temperature ratio of \mu_B/T=2.7 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:msub> <mml:mi>μ</mml:mi> <mml:mi>B</mml:mi> </mml:msub> <mml:mi>/</mml:mi> <mml:mi>T</mml:mi> <mml:mo>=</mml:mo> <mml:mn>2.7</mml:mn> </mml:mrow> </mml:math> , covering the RHIC Beam Energy Scan range, and penetrating the region where methods based on analytic continuation are unpredictive. This opens up a new window to study QCD matter at finite \mu_B <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msub> <mml:mi>μ</mml:mi> <mml:mi>B</mml:mi> </mml:msub> </mml:math> from first principles. This conference contribution is based on Ref. [1].
