The Triple Higgs Boson Self-Coupling at Future Linear e+e- Colliders Energies: ILC and CLIC

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dc.creatorGutierrez-Rodriguez, A.
dc.creatorHernandez-Ruiz, M. A.
dc.creatorSampayo, O. A.
dc.creatorChubykalo, A.
dc.creatorEspinoza-Garrido, A.
dc.date2008-07-03
dc.date.accessioned2026-07-07T12:47:25Z
dc.date.available2026-07-07T12:47:25Z
dc.descriptionWe analyzed the triple Higgs boson self-coupling at future $e^{+}e^{-}$ colliders energies, with the reactions $e^{+}e^{-}\to b \bar b HH, t \bar t HH$. We evaluate the total cross-sections for both $b\bar bHH$ and $t\bar tHH$, and calculate the total number of events considering the complete set of Feynman diagrams at tree-level. We vary the triple coupling $κλ_{3H}$ within the range $κ=-1$ and +2. The numerical computation is done for the energies expected to be available at a possible Future Linear $e^{+}e^{-}$ Collider with a center-of-mass energy $800, 1000, 1500$ $GeV$ and a luminosity 1000 $fb^{-1}$. Our analysis is also extended to a center-of-mass energy 3 $TeV$ and luminosities of 1000 $fb^{-1}$ and 5000 $fb^{-1}$. We found that for the process $e^{+}e^{-}\to b \bar b HH$, the complete calculation differs only by 3% from the approximate calculation $e^{+}e^{-}\to ZHH(Z\to b\bar b)$, while for the process $e^{+}e^{-}\to t \bar tHH$, the expected number of events, considering the decay products of both $t$ and $H$, is not enough to obtain an accurate determination of the triple Higgs boson self-coupling.
dc.description19 pages, 12 figures
dc.identifierhttps://arxiv.org/abs/0807.0663
dc.identifierhttp://arxiv.org/abs/0807.0663
dc.identifierJ.Phys.Soc.Jap.77:094101,2008
dc.identifierdoi:10.1143/JPSJ.77.094101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/221713
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Triple Higgs Boson Self-Coupling at Future Linear e+e- Colliders Energies: ILC and CLIC
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