The Z' reconsidered

Details The Z' reconsidered The Z' reconsidered

2006-11-13

arxiv.org/abs/hep-ph/0611174v1

Annalen Phys.16:563-578,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1002/andp.200710249

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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