交错海面上Borici-Creutz费米子与混合action
Mixed action with Borici-Creutz fermions on staggered sea
摘要：
研究了交错海上含Borici-Creutz价夸克的混合作用格点量子色动力学。在Borici-Creutz作用量中，为了恢复破缺的宇称性和时间对称性，非微扰地固定了计数器项。在对称性恢复方面，观察到了部分猝灭/幺正性破坏的常见特征，如负标量相关。通过测量$Δ_{\rm mix}$，确定了由于价夸克和海夸克的不同离散化而导致的么正性破坏的大小，并发现与其他混合作用量研究具有可比性。
英文摘要：
Mixed action lattice QCD with Borici-Creutz valence quarks on staggered sea is investigated. The counter terms in Borici-Creutz action are fixed nonperturbatively to restore the broken parity and time symmetries. On symmetry restoration, the usual signatures of partial quenching / unitarity violation like negative scalar correlator are observed. The size of unitarity violation due to different discretization of valence and sea quark is determined by measuring $Δ_{\rm mix}$ and is found to be comparable with other mixed action studies.
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