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arXiv · 1303.5701

Modified Higgs Physics from Composite Light Flavors

Cédric Delaunay·Christophe Grojean·Gilad Perez
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Abstract

We point out that Higgs rates into gauge bosons can be significantly modified in composite pseudo Nambu--Goldstone boson (pNGB) Higgs models if quarks belonging to the first two generation are relatively composite objects as well. Although the lightness of the latter a priori screen them from the electroweak symmetry breaking sector, we show, in an effective two-site description, that their partners can lead to order one shifts in radiative Higgs couplings to gluons and photons. Moreover, due to the pseudo-Goldstone nature of the Higgs boson, the size of these corrections is completely controlled by the degree of compositeness of the individual light quarks. The current measurements of flavor-blind Higgs decay rates at the LHC thus provide an indirect probe of the flavor structure of the framework of pNGB Higgs compositeness.

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Cédric Delaunay, Christophe Grojean, Gilad Perez. 2013-03-22. Modified Higgs Physics from Composite Light Flavors. https://doi.org/10.1007/jhep09(2013)090

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