Dynamics from symmetries in chiral SU(N) gauge theories

Dynamics from symmetries in chiral SU(N) gauge theories
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手性 SU(N) 规范理论中对称性的动力学

DOI:
10.1007/jhep09(2020)001
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发表时间:
2020
影响因子:
5.4
通讯作者:
Andrea Luzio
Andrea Luzio
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
S. Bolognesi;K. Konishi;Andrea Luzio

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利用广义对称性、离散中心1-形式对称性和混合t Hooft反常的最新发展,研究了简单手征SU(N)规范理论的对称性和动力学,其中物质Weyl费米子在双指数对称张量和N + 4反基本表象中。这类模型特别有趣,因为传统的t Hooft反常匹配约束允许手征对称的封闭真空,没有凝聚破坏U(1)× SU(N + 4)味对称,并且某些无质量的类重子复合费米子饱和了所有相关的反常三角形。我们的计算表明,在这样的真空中,某些0-形式-1-形式混合特胡夫特反常的紫外-红外匹配失败。这意味着,对于至少具有偶数N的理论,在文献中早先设想的手征对称限制真空实际上不能动态地实现。相比之下,希格斯阶段的特点是一些规范非不变的双费米子凝聚通过我们改进的审查。
The symmetries and dynamics of simple chiral SU(N) gauge theories, with matter Weyl fermions in a two-index symmetric tensor and N + 4 anti-fundamental representations, are examined, by taking advantage of the recent developments involving the ideas of generalized symmetries, gauging of discrete center 1-form symmetries and mixed ’t Hooft anomalies. This class of models are particularly interesting because the conventional ’t Hooft anomaly matching constraints allow a chirally symmetric confining vacuum, with no condensates breaking the U(1) × SU(N + 4) flavor symmetry, and with certain set of massless baryonlike composite fermions saturating all the associated anomaly triangles. Our calculations show that in such a vacuum the UV-IR matching of some 0-form−1-form mixed ’t Hooft anomalies fails. This implies, for the theories with even N at least, that a chirally symmetric confining vacuum contemplated earlier in the literature actually cannot be realized dynamically. In contrast, a Higgs phase characterized by some gauge-noninvariant bifermion condensates passes our improved scrutiny.
异常匹配、(轴向)Schwinger 模型和高温超杨-米尔斯畴壁
DOI: 10.1007/jhep09(2018)076
发表时间: 2018
影响因子: 5.4
作者:
Anber, Mohamed M.;Poppitz, Erich
通讯作者: Poppitz, Erich
高 T SU(N) 超杨米尔斯理论和 QCD(adj) 中的畴壁
DOI: 10.1007/jhep05(2019)151
发表时间: 2019
影响因子: 5.4
作者:
Anber, Mohamed M.;Poppitz, Erich
通讯作者: Poppitz, Erich