论文标题
一个带有重叠费米子的伴随QCD
One flavour adjoint QCD with overlap fermions
论文作者
论文摘要
带有一种狄拉克风味的伴随QCD的红外有效理论仍在争论中。该理论可能是限制，保形的，也可以与红外线中的无质量费米恩。手性对称性的研究似乎对于回答这个问题很重要。尽管先前的研究考虑了威尔逊·费米昂（Wilson Fermions），但我们在这里介绍了基于重叠费米子的第一个结果，以避免明确的手性对称性破裂。这些表明通过形成fermion冷凝物的自发性手性对称性破裂。我们还研究了该理论的运行耦合，这表明我们已经探索的能量区域没有红外形式的保密性。
The infrared effective theory of adjoint QCD with one Dirac flavour is still under debate. The theory could be confining, conformal, or with a massless fermion in the infrared. The study of chiral symmetry seems to be important to answer this question. While previous investigations have considered Wilson fermions, we present here the first results for this theory based on overlap fermions to avoid explicit chiral symmetry breaking. These indicate spontaneous chiral symmetry breaking by the formation of a fermion condensate. We have also investigated the running coupling of the theory, which indicates no infrared conformality in the energy region we have explored.
