Low scale nonuniversal, nonanomalous U(1){sub F}{sup '} in a minimal supersymmetric standard model

Journal Article · Fri Oct 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.075006· OSTI ID:21432317

Muchun, Chen; Jinrui, Huang ^[1]

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1. Department of Physics and Astronomy, University of California, Irvine, California 92697-4575 (United States)

We propose a nonuniversal U(1){sub F}{sup '} symmetry combined with the minimal supersymmetric standard model. All anomaly cancellation conditions are satisfied without exotic fields other than three right-handed neutrinos. Because our model allows all three generations of chiral superfields to have different U(1){sub F}{sup '} charges, upon the breaking of the U(1){sub F}{sup '} symmetry at a low scale, realistic masses and mixing angles in both the quark and lepton sectors are obtained. In our model, neutrinos are predicted to be Dirac fermions and their mass ordering is of the inverted hierarchy type. The U(1){sub F}{sup '} charges of the chiral superfields also naturally suppress the {mu}-term and automatically forbid baryon number and lepton number violating operators. While all flavor-changing neutral current constraints in the down quark and charged-lepton sectors can be satisfied, we find that the constraint from D{sup 0}-D{sup 0} turns out to be much more stringent than the constraints from the precision electroweak data.

• OSTI ID: 21432317
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 7; Other Information: DOI: 10.1103/PhysRevD.82.075006; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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D NEUTRAL MESONS
D QUARKS
FLAVOR MODEL
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MASS
NEUTRAL CURRENTS
NEUTRINOS
STANDARD MODEL
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LIE GROUPS
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