Abstract
Measuring the Higgs-self coupling is one of the most crucial goals of the future colliders, such as the LHC Run-II and the ILC-based photon collider. Since the new physics can affects the di-Higgs production not only from the Higgs self-coupling but also from the top-Higgs coupling, we investigate the di-Higgs production in the presence of the non-standard top-Higgs coupling at the LHC and ILC-based photon collider given the recent Higgs data. Due to the changed interference behaviors of the top quark loops with itself or W boson loops, we find that the cross section of di-Higgs production at the LHC-14 TeV and ILC-500 GeV can be respectively enhanced up to nearly 3 and 2 times the SM predictions within 2σ Higgs data allowed parameter region.
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Liu, N., Hu, S., Yang, B. et al. Impact of top-Higgs couplings on Di-Higgs production at future colliders. J. High Energ. Phys. 2015, 8 (2015). https://doi.org/10.1007/JHEP01(2015)008
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DOI: https://doi.org/10.1007/JHEP01(2015)008