Net-Baryon Number Fluctuations in (2+1)-Flavor QCD(QCD Phase Diagram,New Frontiers in QCD 2010-Exotic Hadron Systems and Dense Matter-)

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概要

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• We present a lattice study of net-baryon number fluctuations in (2+1)-flavor QCD. The results are based on a Taylor expansion of the pressure with respect to the baryon chemical potential. We calculate higher moments of the net-baryon number fluctuations and compare with the corresponding resonance gas results. We find that for temperature below 0.9T_c the fluctuations seem to agree with the hadron resonance gas predictions. Close to T_c, higher moments are increasingly more sensitive to the critical behavior of the QCD phase transition. Furthermore, we estimate the radius of convergence of the Taylor series as well as the curvature of the transition line in the temperature chemical potential plane.

• 2010-12-17

著者

• Schmidt Christian

  Frankfurt Institute For Advanced Studies

関連論文

• Net-Baryon Number Fluctuations in (2+1)-Flavor QCD(QCD Phase Diagram,New Frontiers in QCD 2010-Exotic Hadron Systems and Dense Matter-)

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