论文标题

晶格QCD有效理论的平均场近似

Mean field approximation for effective theories of lattice QCD

论文作者

Konrad, Christoph, Philipsen, Owe, Scheunert, Jonas

论文摘要

为了探索QCD的相图,从晶格QCD得出的有效的Polyakov环理论为重夸克质量制度提供了有价值的工具。实际上,对这些理论的评估因远程和多点相互作用项的出现而变得复杂。另一方面,众所周知,对于具有这种相互作用的理论,可以预期近似值将产生可靠的结果。在这里,我们将此框架应用于解元过渡的临界端点,并将结果与​​文献进行了比较。该处理也可用于研究非零重子和同胞化学潜力的相图。

For the exploration of the phase diagram of QCD, effective Polyakov loop theories derived from lattice QCD provide a valuable tool in the heavy quark mass regime. In practice, the evaluation of these theories is complicated by the appearance of long-range and multipoint interaction terms. On the other hand, it is well known that for theories with such kind of interactions mean field approximations can be expected to yield reliable results. Here, we apply this framework to the critical endpoint of the deconfinement transition and results are compared to the literature. This treatment can also be used to investigate the phase diagram at non-zero baryon and isospin chemical potential.

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