Extending the Higgs sector: an extra singlet
S. I. Godunov, A. N. Rozanov, M. I. Vysotsky, E. V. Zhemchugov
TL;DR
This paper explores an extension of the Standard Model by adding a Higgs singlet, analyzing its effects on Higgs boson properties, electroweak constraints, and potential signals at the LHC.
Contribution
It provides new bounds on the singlet admixture in the 125 GeV Higgs and investigates the possibility of enhanced double Higgs production at the LHC.
Findings
Bounds on singlet admixture from electroweak corrections
Constraints from Higgs production and decay data
Potential enhancement of double Higgs production at 14 TeV LHC
Abstract
An extension of the Standard Model with an additional Higgs singlet is analyzed. Bounds on singlet admixture in 125 GeV h boson from electroweak radiative corrections and data on h production and decays are obtained. Possibility of double h production enhancement at 14 TeV LHC due to heavy higgs contribution is considered.
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