Locating the QCD critical endpoint through finite-size scaling

Considering the 3D Ising universality class of the QCD critical endpoint, we use a universal effective action for the description of the baryon-number density fluctuations around the critical region. Calculating the baryon-number multiplicity moments and determining their scaling with system's size, we show that the critical region is very narrow in the direction of the baryon chemical potential \ensuremath{\mu}and wider in the temperature...