Study of QCD critical point using canonical ensemble method

Details Study of QCD critical point using canonical ensemble method Study of QCD critical point using canonical ensemble method

2009-08-08

arxiv.org/abs/0908.1155v2

Nucl.Phys.A830:633c-635c,2009

Physics

High Energy Physics

High Energy Physics - Lattice

2 pages, 2 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee

Scientific paper

10.1016/j.nuclphysa.2009.10.113

The existence of the QCD critical point at non-zero baryon density is not only of great interest for experimental physics but also a challenge for the theory. We use lattice simulations based on the canonical ensemble method to explore the finite baryon density region and look for the critical point. We scan the phase diagram of QCD with three degenerate quark flavors using clover fermions with $m_\pi \approx 700{MeV}$ on $6^3\times4$ lattices. We measure the baryon chemical potential as we increase the density and we see the characteristic "S-shape" that signals the first order phase transition. We determine the phase boundary by Maxwell construction and report our preliminary results for the location of critical point.

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