Color octet scalar bound states at the LHC
One possible extension of the standard model scalar sector includes SU(2)L doublet scalars that are color octets rather than singlets. We focus on models in which the couplings to fermions are consistent with the principle of minimal flavor violation, in which case these color-octet scalars couple most strongly to the third generation of quarks. When the Yukawa coupling of color-octet scalars to standard model fermions is less than unity, these states can live long enough to bind into color-singlet spin-0 hadrons, which we call octetonia. In this paper, we consider the phenomenology of octetonia at the Large Hadron Collider. Predictions for their production via gluon-gluon fusion and their two-body decays into standard model gauge bosons, Higgs bosons, and t̄t are presented. © 2009 The American Physical Society.
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