Large extra dimension effects in Higgs boson production at linear colliders and Higgs factories

Abstract

In the framework of quantum gravity propagating in large extra dimensions, the effects of virtual Kaluza-Klein graviton and graviscalar interference with Higgs boson production amplitudes are computed at linear colliders and Higgs factories. The interference of the almost-continuous spectrum of the KK gravitons with the standard model resonant amplitude is finite and predictable in terms of the fundamental D-dimensional Plank scale M_D and the number of extra dimensions δ. We find that, for M_D ~ 1 TeV and δ=2, effects of the order of a few percent could be detected for heavy Higgs bosons (m_H>500 GeV) in Higgs production both via WW fusion in e^+e^- colliders and at μ^+μ^- Higgs-boson factories.

16 pages, 2 figures ; a few comments and references added ; version to appear in JHEP

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Cited by in corpus (5)

• Large Extra Dimension effects through Light-by-Light Scattering at the CERN LHC
• The effects of large extra dimensions on associated $t\bar{t}{h}^0$ production at linear colliders
• Violation of Angular Momentum Selection Rules in Quantum Gravity
• Indian Contributions to LHC Theory
• Neutral Triple Gauge Boson production in the large extra dimensions model at linear colliders