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Many flavor approach to study the critical point in finite density QCD
Ryo Iwami, Shinji Ejiri, Norikazu Yamada
We discuss the QCD critical point at finite density through the study of many flavor QCD, in which two light flavors and Nf massive flavors exist. Performing simulations of QCD wit…
Analytic continuation of finite density QCD with heavy quarks in the strong coupling region
Shinji Ejiri, Hiroshi Yoneyama
Complex nature of finite density QCD with heavy quarks in the strong coupling region is studied. For this purpose, we consider the effective potential as a function of Polyakov lin…
Towards the QCD equation of state at the physical point using Wilson fermion
T. Umeda, S. Ejiri, R. Iwami +1
We study the (2+1)-flavor QCD at nonzero temperatures using nonperturbatively improved Wilson quarks of the physical masses by the fixed scale approach. We perform physical point s…
Exploring the nature of chiral phase transition in two-flavor QCD using extra heavy quarks
Shinji Ejiri, Ryo Iwami, Norikazu Yamada
Chiral phase transition of two flavor QCD at finite quark masses is known to be crossover except near the chiral limit, but it can turn to a first order transition when adding many…
Multipoint reweighting method and its applications to lattice QCD
R. Iwami, S. Ejiri, K. Kanaya +3
The reweighting method is widely used in numerical studies of QCD, in particular, for the cases in which the conventional Monte-Carlo method cannot be applied directly, e.g., finit…
First order transition regions in the quark masses and chemical potential parameter space of QCD
Shinji Ejiri, Norikazu Yamada, Hiroshi Yoneyama
We investigate the phase transitions of (2+Nf)-flavor QCD, where two light flavors and Nf massive flavors exist, aiming to understand the phase structure of (2+1)-flavor QCD. Perfo…