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arXiv · hep-ph/0611174

The Z' reconsidered

A. Ferroglia·A. Lorca·J. J. van der Bij
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Abstract

We consider the extension of the standard model with an arbitrary number of U(1) gauge fields coupled to baryon-minus-lepton number and/or hypercharge. Under the assumption that A^b_FB from the LEP1 experiment is an unlucky fluctuation, we find moderate evidence for the presence of such fields in the precision electroweak data. A relatively large range of the Higgs boson mass is allowed. We discuss the phenomenology of the extra U(1) fields.

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A. Ferroglia, A. Lorca, J. J. van der Bij. 2006-11-13. The Z' reconsidered. https://doi.org/10.1002/andp.200710249

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