The Z' reconsidered
classification
✦ hep-ph
keywords
fieldsnumberallowedarbitraryassumptionbaryon-minus-leptonbosonconsider
read the original 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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