Gauge-Invariant Quantum Fields

Fuente: arXiv
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Auteur principal: Quadri, Andrea
Format: Preprint
Publié: 2024
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author Quadri, Andrea
author_facet Quadri, Andrea
contents Gauge-invariant quantum fields are constructed in an Abelian power-counting renormalizable gauge theory with both scalar, vector and fermionic matter content. This extends previous results already obtained for the gauge-invariant description of the Higgs mode via a propagating gauge-invariant field. The renormalization of the model is studied in the Algebraic Renormalization approach. The decomposition of Slavnov-Taylor identities into separately invariant sectors is analyzed. We also comment on some non-renormalizable extensions of the model whose 1-PI Green's functions are the flows of certain differential equations of the homogeneous Euler type, exactly resumming the dependence on a certain set of dim. 6 and dim. 8 derivative operators. The latter are identified uniquely by the condition that they span the mass and kinetic terms in the gauge-invariant dynamical fields. The construction can be extended to non-Abelian gauge groups.
format Preprint
id arxiv_https___arxiv_org_abs_2402_01016
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Gauge-Invariant Quantum Fields
Quadri, Andrea
High Energy Physics - Theory
High Energy Physics - Phenomenology
Gauge-invariant quantum fields are constructed in an Abelian power-counting renormalizable gauge theory with both scalar, vector and fermionic matter content. This extends previous results already obtained for the gauge-invariant description of the Higgs mode via a propagating gauge-invariant field. The renormalization of the model is studied in the Algebraic Renormalization approach. The decomposition of Slavnov-Taylor identities into separately invariant sectors is analyzed. We also comment on some non-renormalizable extensions of the model whose 1-PI Green's functions are the flows of certain differential equations of the homogeneous Euler type, exactly resumming the dependence on a certain set of dim. 6 and dim. 8 derivative operators. The latter are identified uniquely by the condition that they span the mass and kinetic terms in the gauge-invariant dynamical fields. The construction can be extended to non-Abelian gauge groups.
title Gauge-Invariant Quantum Fields
topic High Energy Physics - Theory
High Energy Physics - Phenomenology
url https://arxiv.org/abs/2402.01016