Abstract
We extend the study of Higgs boson couplings in the “golden” channel in two important respects. First, we demonstrate the importance of off-shell Higgs boson production () in determining which operators contribute to the vertex. Second, we include the five operators of lowest nontrivial dimension, including the and operators that are often neglected. We point out that the former operator can be severely constrained by the measurement of the off-shell rate and/or unitarity considerations. We provide analytic expressions for the off-peak cross sections in the presence of these five operators. On shell, the operator is indistinguishable from its Standard Model counterpart , while the operator can be probed, in particular, by the invariant mass distribution.
3 More- Received 28 March 2014
DOI:https://doi.org/10.1103/PhysRevD.91.035011
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