2,254 research outputs found
Scalar resonance at 750 GeV as composite of heavy vector-like fermions
We study a model of scalars which includes both the SM Higgs and a scalar
singlet as composites of heavy vector-like fermions. The vector-like fermions
are bounded by the super-strong four-fermion interactions. The scalar singlet
decays to SM vector bosons through loop of heavy vector-like fermions. We show
that the surprisingly large production cross section of di-photon events at 750
GeV resonance and the odd decay properties can all be explained. This model
serves as a good model for both SM Higgs and a scalar resonance at 750 GeV.Comment: 12 pages, no figure, references updated, version for publicatio
Bottom partner B' and Zb production at the LHC
Some new physics models, such as "beautiful mirrors" scenario, predict the
existence of the bottom partner . Considering the constraints from the data
for the branching ratio and the asymmetry
on the relevant free parameters, we calculate the contributions of
to the cross section and the polarization asymmetry
for production at the . We find that the bottom partner
can generate significant corrections to and , which might
be detected in near future.Comment: 15 pages, 5 figures. Version published in Phys. Lett.
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