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arXiv · 1807.10026

The curvature of the chiral pseudocritical line from LQCD: analytic continuation and Taylor expansion compared

Claudio Bonati·Massimo D'Elia·Francesco Negro·Francesco Sanfilippo·Kevin Zambello
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Abstract

We present a determination of the curvature $κ$ of the chiral pseudocritical line from $N_f=2+1$ lattice QCD at the physical point obtained by adopting the Taylor expansion approach. Numerical simulations performed at three lattice spacings lead to a continuum extrapolated curvature $κ= 0.0145(25)$, a value that is in excellent agreement with continuum limit estimates obtained via analytic continuation within the same discretization scheme, $κ= 0.0135(20)$. The agreement between the two calculations is a solid consistency check for both methods.

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Claudio Bonati, Massimo D'Elia, Francesco Negro, Francesco Sanfilippo, Kevin Zambello. 2018-07-26. The curvature of the chiral pseudocritical line from LQCD: analytic continuation and Taylor expansion compared. https://doi.org/10.1016/j.nuclphysa.2018.08.026

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