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2012

Discovering the composite Higgs through the decay of a heavy fermion

Vignaroli, Natascia

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A possible composite nature of the Higgs could be revealed at the early stage of the LHC, by analyzing the channels where the Higgs is produced from the decay of a heavy fermion.

The Higgs production from a singly-produced heavy bottom, in particular, proves to be a promising channel.
For a value \lambda=3 of the Higgs coupling to a heavy bottom, for example, we find that, considering a 125 GeV Higgs which decays into a pair of b-quarks, a discovery is possible at the 8 TeV LHC with 30 fb^{-1} if the heavy bottom is lighter than roughly 530 GeV (while an observation is possible for heavy bottom masses up to 650 GeV).
Such a relatively light heavy bottom is realistic in composite Higgs models of the type considered and, up to now, experimentally allowed.

Discovering the composite Higgs through the decay of a heavy fermion · Around

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