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- W4307207954 abstract "The analytic continuation of the gluon propagator is revised in the light of recent findings on the possible existence of complex conjugated poles. The contribution of the anomalous pole must be added when Wick rotating, leading to an effective Minkowskian propagator which is not given by the trivial analytic continuation of the Euclidean function. The effective propagator has an integral representation in terms of a spectral function which is naturally related to a set of elementary (complex) eigenvalues of the Hamiltonian, thus generalizing the usual Kallen-Lehmann description. A simple toy model shows how the elementary eigenvalues might be related to actual physical quasiparticles of the non-perturbative vacuum." @default.
- W4307207954 created "2022-10-30" @default.
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- W4307207954 date "2022-10-20" @default.
- W4307207954 modified "2023-10-14" @default.
- W4307207954 title "Analytic continuation and physical content of the gluon propagator" @default.
- W4307207954 doi "https://doi.org/10.48550/arxiv.2210.11541" @default.
- W4307207954 hasPublicationYear "2022" @default.
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