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- W4308884174 abstract "We study the effect of a refined electron-photon vertex on the dynamical breaking of chiral symmetry in reduced quantum electrodynamics. We construct an educated {em ansatz} for this vertex which satisfies the required discrete symmetries under parity, time reversal and charge conjugation operations. Furthermore, it reproduces its asymptotic perturbative limit in the weak coupling regime and ensures the massless electron propagator is multiplicatively renormalizable in its leading logarithmic expansion. Employing this vertex {em ansatz}, we solve the gap equation to compute dynamically generated electron mass whose dependence on the electromagnetic coupling is found to satisfy Miransky scaling law. We also investigate the gauge dependence of this dynamical mass as well as that of the critical coupling above which chiral symmetry is dynamically broken. As a litmus test of our vertex construction, both these quantities are rendered virtually gauge independent within a certain interval of values considered for the covariant gauge parameter." @default.
- W4308884174 created "2022-11-18" @default.
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- W4308884174 date "2022-11-10" @default.
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- W4308884174 title "Electron-photon vertex and dynamical chiral symmetry breaking in reduced QED: An advanced study of gauge invariance" @default.
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- W4308884174 doi "https://doi.org/10.1103/physrevd.106.096007" @default.
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