Fermion-Antifermion Condensate Contribution to the Anomalous Magnetic Moment of a Fundamental Dirac Fermion

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dc.creatorElias, Victor
dc.creatorSprague, Kevin
dc.date1998-08-10
dc.date.accessioned2026-07-07T04:04:30Z
dc.date.available2026-07-07T04:04:30Z
dc.descriptionWe consider the contribution of fermion-antifermion condensates to the anomalous magnetic moment of a fermion in a vacuum in which such condensates exist. The real part of the condensate contribution to the anomalous magnetic moment is shown to be zero. A nonzero imaginary part is obtained below the kinematic threshold for intermediate fermion-antifermion pairs. The calculation is shown to be gauge-parameter independent provided a single fermion mass characterizes both the fermion propagator and condensate-sensitive contributions, suggestive of a dynamically-generated fermion mass. The nonzero imaginary part is then argued to correspond to the kinematic production of the intermediate-state Goldstone bosons anticipated from a chiral-noninvariant vacuum. Finally, speculations are presented concerning the applicability of these results to quark electromagnetic properties.
dc.description39 pages, 4 figures, accepted for publication in the International Journal of Theoretical Physics (November issue)
dc.identifierhttps://arxiv.org/abs/hep-ph/9808285
dc.identifierhttp://arxiv.org/abs/hep-ph/9808285
dc.identifierInt.J.Theor.Phys. 37 (1998) 2767-2789
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/48121
dc.subjectHigh Energy Physics - Phenomenology
dc.titleFermion-Antifermion Condensate Contribution to the Anomalous Magnetic Moment of a Fundamental Dirac Fermion
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