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K. Kashiwa, T. Sasaki, H. Kouno and M. Yahiro, 2012. arXiv:1208.2283

has been cited by the following article:

  • TITLE: Impact of Vector-Current Interactions on the QCD Phase Diagram

    AUTHORS: Thomas Hell, Kouji Kashiwa, Wolfram Weise

    KEYWORDS: QCD Phase Diagram; PNJL Model

    JOURNAL NAME: Journal of Modern Physics, Vol.4 No.5, May 27, 2013

    ABSTRACT: Using a nonlocal version of the Polyakov-loop-extended Nambu-Jona-Lasinio model, we investigate effects of a nonderivative vector-current interaction (relating to the quark-number density) at both real and imaginary chemical potentials. This repulsive vector interaction between quarks has the following impact on the chiral first-order phase transition: at imaginary chemical potential it sharpens the transition at the Roberge-Weiss (RW) end point and moves this critical point toward lower temperatures; at real chemical potential, the critical end point moves on a trajectory towards larger chemical potentials and lower temperatures with increasing vector coupling strength. The conditions are discussed at which the first-order phase transition disappears and turns into a smooth crossover.