Abstract
We attribute deviations of the muon and electron magnetic moments from the theoretical predictions to the presence of an additional U(1)′ supersymmetric model. We interpret the discrepancies between the muon and electron anomalous magnetic moments to be due to the presence of non-universal U(1)′ charges. In a minimally extended model, we show that requiring both deviations to be satisfied imposes constraints on the spectrum of the model, in particular on dark matter candidates and slepton masses and ordering. Choosing three benchmarks with distinct dark matter features, we study implications of the model at colliders, concentrating on variables that can distinguish our non-universal scenario from other U(1)′ implementations.
Highlights
Family-dependent charge assignmentsIn table 1 we list the all the particles involved in the spectrum and their charges under the minimal SSM (MSSM) gauge group and the additional U(1) symmetry
We attribute deviations of the muon and electron magnetic moments from the theoretical predictions to the presence of an additional U(1) supersymmetric model
We provide a solution to measurements of the anomalous magnetic moments for both the muon and the electron
Summary
In table 1 we list the all the particles involved in the spectrum and their charges under the MSSM gauge group and the additional U(1) symmetry. If we require family-universal U(1) charges for all quarks, this necessitates introducing a set of nDx exotic fields (Dx, Dx), whose charges can be determined with respect to QS, as necessary to solve all the equations for gauge invariance and anomaly cancelation. All equations are satisfied by setting nDx = 3, YDx = −1/3, while for QDx, QDx several values are possible depending on the choice of U(1) charges for the other particles. These fields which behave effectively as exotic d-type quarks, can be thought of as remnants from the breaking of E6. In the subsection, the Lagrangian and soft-breaking terms which satisfy all gauge and anomaly canceling conditions
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