Spectrum and mass anomalous dimension of SU(2) adjoint QCD with two Dirac flavors

Spectrum and mass anomalous dimension of SU(2) adjoint QCD with two Dirac flavors
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具有两种狄拉克风味的 SU(2) 伴随 QCD 的谱和质量反常维数

DOI:
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
S. Piemonte
S. Piemonte
中科院分区:
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文献类型:
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作者:
G. Bergner;P. Giudice;I. Montvay;G. Munster;S. Piemonte

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在这项工作中,我们提出了我们的研究结果SU(2)规范理论与两个狄拉克费米子的伴随表示(aQCD 2),这属于类强相互作用规范理论的基本兴趣的标准模型的扩展。我们在两个不同的规范耦合值和几个费米子质量下对这个理论进行了数值格子模拟。我们的结果包括粒子谱和质量反常维数。光谱包含新的奇异费米子-胶子态和味单态介子。质量反常维数由质量和模数的标度确定。普适质量比和质量反常维数对规范耦合的剩余依赖性表明了标度修正的相关性,使得早期对质量反常维数的普适不动点值的估计在没有它们的情况下是不完整的。
In this work we present the results of our investigation of SU(2) gauge theory with two Dirac fermions in the adjoint representation (aQCD2), which belongs to the class of strongly interacting gauge theories that are of basic interest for extensions of the Standard Model. We have done numerical lattice simulations of this theory at two different values of the gauge coupling and several fermion masses. Our results include the particle spectrum and the mass anomalous dimension. The spectrum contains new exotic fermion-gluon states and flavor-singlet mesons. The mass anomalous dimension is determined from the scaling of the masses and the mode number. The remnant dependence of the universal mass ratios and mass anomalous dimension on the gauge coupling indicates the relevance of scaling corrections, such that earlier estimations for the universal fixed point value of the mass anomalous dimension are incomplete without their inclusion.
DOI: 10.1103/physrevd.93.054505
发表时间: 2016
期刊: Physical Review D
影响因子: 5
作者:
Del Debbio L
通讯作者: Del Debbio L
DOI: 10.1103/physrevd.91.114508
发表时间: 2014-12
期刊: Physical Review D
影响因子: 5
作者:
A. Athenodorou;E. Bennett;G. Bergner;B. Lucini
通讯作者: A. Athenodorou;E. Bennett;G. Bergner;B. Lucini