The Z' reconsidered
High Energy Physics - Phenomenology
2011-03-23 v1
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.
Cite
@article{arxiv.hep-ph/0611174,
title = {The Z' reconsidered},
author = {A. Ferroglia and A. Lorca and J. J. van der Bij},
journal= {arXiv preprint arXiv:hep-ph/0611174},
year = {2011}
}