Dilepton Signatures of Family Non-Universal U(1)'

Details Dilepton Signatures of Family Non-Universal U(1)' Dilepton Signatures of Family Non-Universal U(1)'

2007-03-24

arxiv.org/abs/hep-ph/0703269v1

Phys.Lett.B649:191-196,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 4 figures

Scientific paper

10.1016/j.physletb.2007.03.049

The supersymmetric models extending the minimal supersymmetric standard model (MSSM) by an additional Abelian gauge factor U(1)' in order to solve the mu problem do generically suffer from anomalies disrupting the gauge coupling unification found in the MSSM. The anomalies are absent if the minimal matter content necessitated by the mu problem is augmented with exotic matter species having appropriate quantum numbers. Recently, it has been shown that anomaly cancellation can also be accomplished by introducing family non-universal U(1)' charges and non-holomoprhic soft-breaking terms. We discuss collider signatures of anomaly-free family non-universal U(1)' model by analyzing dilepton production in future colliders. We find that, both at LHC and NLC, one can establish existence/absence of such a Z' boson by simply comparing the number of dilepton production events for electron, muon and tau lepton. The signal is free of the SM background.

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