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

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

2011-04-25

arxiv.org/abs/1104.4782v1

Phys.Rev.Lett.107:061802,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, RevTeX, 3 figures

Scientific paper

10.1103/PhysRevLett.107.061802

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.

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