Key points are not available for this paper at this time.
We determine the curvature of the pseudocritical line of strong interactions by means of numerical simulations at imaginary chemical potentials. We consider N₅=2+1 stout improved staggered fermions with physical quark masses and the tree level Symanzik gauge action, and explore four different sets of lattice spacings, corresponding to Nₓ=6, 8, 10, 12, in order to extrapolate results to the continuum limit. Our final estimate is =0. 0135 (20).
Bonati et al. (2015) studied this question.