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Anomalous coupling of scalars to gauge fields
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Anomalous coupling of scalars to gauge fields
classification
hep-th
astro-ph.COhep-ph
keywords
gaugecouplingfieldsframeanomalousassociatedchangingcorresponding
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We study the transformation properties of a scalar-tensor theory, coupled to fermions, under the Weyl rescaling associated with a transition from the Jordan to the Einstein frame. We give a simple derivation of the corresponding modification to the gauge couplings. After changing frame, this gives rise to a direct coupling between the scalar and the gauge fields.
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