Higgs Pair Production at the LHC in Models with Universal Extra Dimensions
Hiroshi de Sandes, Rogerio Rosenfeld
TL;DR
This paper investigates how universal extra dimensions affect Higgs pair production at the LHC, showing that Kaluza-Klein excitations of the top quark can significantly modify the production cross section compared to the Standard Model.
Contribution
It introduces the impact of universal extra dimensions on Higgs pair production, highlighting the role of top quark Kaluza-Klein modes in altering cross sections.
Findings
Kaluza-Klein excitations significantly enhance Higgs pair production cross section.
The effects are more pronounced at smaller compactification scales.
Potential for new physics signals at the LHC from extra-dimensional models.
Abstract
In this letter we study the process of gluon fusion into a pair of Higgs bosons in a model with one universal extra dimension. We find that the contributions from the extra top quark Kaluza-Klein excitations lead to a Higgs pair production cross section at the LHC that can be significantly altered compared to the Standard Model value for small values of the compactification scale.
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