CERN Accelerating science

Article
Report number	hep-ph/0105036 ; HEP-IFUAP-2001-01
Title	What heavy quanta bounds could be inferred from a Higgs discovery?
Author(s)	Díaz-Cruz, J L (IFUAP, Puebla, Mexico)
Publication	2001
In:	Mod. Phys. Lett. A 16 (2001) 863-71
DOI	10.1142/S0217732301003966
Subject category	Particle Physics - Phenomenology
Abstract	The Higgs couplings can receive non-decoupling corrections due to heavy quanta, and deviations from the SM can be used to test its presence. The possible Higgs signal recently reported at LEP, with mh=115 GeV, severely constrains the presence of heavy quanta, such as a heavy fourth family. At Tevatron, the Higgs production by gluon fusion, followed by the decay h -> WW*, can also be used to probe the existence of heavy colored particles, including additional families, chiral sextet and octet quarks. Within the MSSM, we also find that gluon fusion is a sensitive probe for the squark spectrum.

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