Infrared regime of SU(2) with one adjoint Dirac flavor
Infrared regime of SU(2) with one adjoint Dirac flavor
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DOI：
10.1103/physrevd.91.114508
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发表时间：
2014-12
影响因子：
5
通讯作者：
A. Athenodorou;E. Bennett;G. Bergner;B. Lucini
中科院分区：
文献类型：
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作者：
A. Athenodorou;E. Bennett;G. Bergner;B. Lucini
在格子上研究了伴随表象中具有一种狄拉克特征的SU(2)规范理论。给出了胶子和介子谱、威尔逊环和波里亚科夫环的静态势以及由狄拉克模数计算的费米子凝聚体的反常维度的初步结果。发现的结果与传统的禁闭行为不一致，而是试探性地指向了一个理论，该理论位于共形窗口的起始处或非常接近共形窗口的起始处，费米子凝聚体的反常维度在0.9≲γ∗≲0.95的范围内。讨论了我们的工作对于建立超越标准模型的强相互作用动力学的可行理论的意义。
SU(2) gauge theory with one Dirac flavor in the adjoint representation is investigated on a lattice. Initial results for the gluonic and mesonic spectrum, static potential from Wilson and Polyakov loops, and the anomalous dimension of the fermionic condensate from the Dirac mode number are presented. The results found are not consistent with conventional confining behavior, pointing instead tentatively towards a theory lying within or very near the onset of the conformal window, with the anomalous dimension of the fermionic condensate in the range 0.9≲γ∗≲0.95. The implications of our work for building a viable theory of strongly interacting dynamics beyond the standard model are discussed.