930 research outputs found
Impact of top-Higgs couplings on di-Higgs production at future colliders
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 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 2 Higgs data allowed parameter region.Comment: 16 pages, references and discussions added, accepted by JHE
Higgs boson production and decay at colliders as a probe of the Left-Right twin Higgs model
In the framework of the Left-Right twin Higgs (LRTH) model, we consider the
constrains from the latest search for high-mass dilepton resonances at the LHC
and find that the heavy neutral boson is excluded with mass below 2.76
TeV. Under these constrains, we study the Higgs-Gauge coupling production
processes , and , top quark
Yukawa coupling production process , Higgs
self-couplings production processes and
at colliders.
Besides, we study the major decay modes of the Higgs boson, namely
(), , , .
We find that the LRTH effects are sizable so that the Higgs boson processes at
collider can be a sensitive probe for the LRTH model.Comment: Final version to appear in Nucl.Phys.
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