Roberge-Weiss endpoint in N{sub f}=2 QCD

@article{Bonati2010RobergeWeissEI,
  title={Roberge-Weiss endpoint in N\{sub f\}=2 QCD},
  author={Claudio Bonati and Guido Cossu and Massimo D'Elia and Francesco Sanfilippo},
  journal={Physical Review D},
  year={2010},
  volume={83}
}
We present the results of extensive simulations regarding the critical behavior at the endpoint of the Roberge-Weiss transition for N{sub f}=2 QCD. We confirm early evidence, presented in Ref. [M. D'Elia and F. Sanfilippo, Phys. Rev. D 80, 111501(R) (2009).], according to which the Roberge-Weiss endpoint is first order in the limit of large or small quark masses, and second order for intermediate masses. A systematic study of the transition strength as a function of the quark mass in the first… 
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