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Top quark asymmetry and Wjj excess at CDF from gauged flavor symmetry

By K. S. Babu, Mariana Frank and Santosh Kumar Rai

Abstract

We show that the scalar sector needed for fermion mass generation when the flavor symmetry of the standard model is maximally gauged can consistently explain two anomalies reported recently by the CDF collaboration - the forward-backward asymmetry in t-tbar pair production, and the dijet invariant mass in the Wjj channel. A pair of nearly degenerate scalar doublets with masses in the range 150-200 GeV explain these anomalies, with additional scalars predicted in the mass range 100-400 GeV. Consistency of such low scale flavor physics with flavor changing processes is shown, and expectations for the LHC are outlined.Comment: 4 pages, RevTeX, 3 figure

Topics: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Publisher: 'American Physical Society (APS)'
Year: 2011
DOI identifier: 10.1103/PhysRevLett.107.061802
OAI identifier: oai:arXiv.org:1104.4782

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