Precise predictions for Higgs production in models with color-octet scalars

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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6 pages, 5 figures, to appear in the proceedings of the "10th DESY Workshop on Elementary Particle Theory: Loops and Legs in Q

Scientific paper

10.1016/j.nuclphysbps.2010.09.00

We describe an effective-theory computation of the next-to-next-to-leading order (NNLO) QCD corrections to the gluon-fusion production of a Higgs boson in models with massive color-octet scalars in the (8,1)_0 representation. Numerical results are presented for both the Tevatron and the LHC. The estimated theoretical uncertainty is greatly reduced by the inclusion of the NNLO corrections. Color-octet scalars can increase the Standard Model rate by more than a factor of two in allowed regions of parameter space.

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