Can new colored particles illuminate the Higgs?

A bstract We analyze the behavior of Higgs to diphoton rate and Higgs gluon-gluon production cross section in minimal extensions of the Standard Model comprising new colored vector-like fermions that do not mix with the ordinary ones. We compare these information with constraints coming from electro...

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Veröffentlicht in:	The journal of high energy physics 2013-02, Vol.2013 (2), p.1-20, Article 86
Hauptverfasser:	Bertuzzo, E., Machado, P. A. N., Funchal, R. Zukanovich
Format:	Artikel
Sprache:	eng
Schlagworte:	Classical and Quantum Gravitation Cross sections Cross sections (physics) Elementary Particles Fermions High energy physics Pair production Phenomenology Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Relativity Theory Standard model (particle physics) String Theory
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Beschreibung
Zusammenfassung:	A bstract We analyze the behavior of Higgs to diphoton rate and Higgs gluon-gluon production cross section in minimal extensions of the Standard Model comprising new colored vector-like fermions that do not mix with the ordinary ones. We compare these information with constraints coming from electroweak precision measurements. We compute pair production cross sections for the lightest fermion and discuss the LHC bounds. Finally, we study the phenomenology of possible quarkonium states composed by thesenew colored fermions.
ISSN:	1029-8479 1029-8479
DOI:	10.1007/JHEP02(2013)086