出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We discuss the analytic continuation beyond m T
1 in QCD at nonzero T and m by use of the
Pade’ approximants. The slope of the critical line obtained in this way increases at large m with
respect to the second order Taylor result.In the hot phase Pade’ and Taylor approximants coincide,
suggesting a very large, and possibly infinite, radius of convergence of the Taylor series in this
thermodynamic region.
