Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-03-31
JHEP 0310 (2003) 003
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 2 figures ; a few comments and references added ; version to appear in JHEP
Scientific paper
10.1088/1126-6708/2003/10/003
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 \delta. We find that, for M_D ~ 1 TeV and \delta=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 \mu^+\mu^- Higgs-boson factories.
Datta Anindya
Gabrielli Emidio
Mele Barbara
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