Particles, Vol. 6, Pages 834-846: Lee–Yang Zeroes in the Baryon Fugacity Plane: The Role of High Densities

Particles, Vol. 6, Pages 834-846: Lee–Yang Zeroes in the Baryon Fugacity Plane: The Role of High Densities

Particles doi: 10.3390/particles6030053

Authors: Nikolai Gerasimeniuk Vitaly Bornyakov Vladimir Goy Roman Rogalyov Anatolii Korneev Alexander Molochkov Atsushi Nakamura

We compute the canonical partition functions and the Lee–Yang zeros in Nf=2 lattice QCD at temperature T=1.20Tc lying above the Roberge–Weiss phase transition temperature TRW. The phase transition is characterized by the discontinuities in the baryon number density at specific values of imaginary baryon chemical potential. We further develop our method to compute the canonical partition functions using the asymptotic expression for respective integral. Then, we compute the Lee–Yang zeros and study their behavior in the limit of high baryon density.