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arXiv · hep-ph/0411004

Massless Gauge Bosons other than the Photon

Bogdan A. Dobrescu
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Abstract

Gauge bosons associated with unbroken gauge symmetries, under which all standard model fields are singlets, may interact with ordinary matter via higher-dimensional operators. A complete set of dimension-six operators involving a massless U(1) field, gamma-prime, and standard model fields is presented. The mu to e gamma-prime decay, primordial nucleosynthesis, star cooling and other phenomena set lower limits on the scale of chirality-flip operators in the 1 - 15 TeV range, if the operators have coefficients given by the corresponding Yukawa couplings. Simple renormalizable models induce gamma-prime interactions with leptons or quarks at two loops, and may provide a cold dark matter candidate.

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Bogdan A. Dobrescu. 2004-11-01. Massless Gauge Bosons other than the Photon. https://doi.org/10.1103/physrevlett.94.151802

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