Study of Higgs-gauge boson anomalous couplings through $e^{-}{e}^{+}\to W^{-}{W}^{+}H$ at ILC

Abstract

In this work, Higgs couplings with gauge bosons is probed through $e^{-}{e}^{+}\to W^{-}{W}^{+}H$ in an effective Lagrangian framework. An ILC of 500 $GeV$ center of mass energy with possible beam polarization is considered for this purpose. The reach of ILC with integrated luminosity of 300 $f{b}^{-1}$ in the determination of both the CP-conserving and CP-violating parameters are obtained. Sensitivity of the probe of each of these couplings on the presence of other couplings is investigated. The most influential couplings parameters are ${\bar{c}}_W=-{\bar{c}}_B$. Other parameters of significant effect are ${\bar{c}}_{HW}$ and ${\bar{c}}_{HB}$ among the CP-conserving ones, and ${\tilde{c}}_{HW}$ and ${\tilde{c}}_{HB}$ among the CP-violating ones. CP-violating parameter, ${\tilde{c}}_{\gamma }$ seems to have very little influence on the process considered. Detailed study of the angular distributions have presented a way to disentangle the effect of some of these couplings.

arXiv commentpdflatex, 15 pages, 11 figures, 3 tables. arXiv admin note: text overlap with arXiv:1408.3563. published version with minor changes in the figure presentation, updated references

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• Contact Interactions in Higgs-Vector Boson Associated Production at the ILC
• Off-shell effects in Higgs processes at a linear collider and implications for the LHC
• Effective Theories with Dark Matter Applications
• CP-violating Higgs-gauge boson couplings in $H\nu \bar{\nu }$ production at three energy stages of CLIC
• Measuring the ratio of $HWW$ and $HZZ$ couplings through $W^{+}{W}^{-}H$ production
• Non-standard Higgs couplings in single Higgs boson production at the LHC and future linear collider
• Constraining capability of $Z\gamma h$ production at the ILC
• Probing CP-violating Higgs-gauge Boson Couplings at Future Muon Collider
• Study of anomalous gauge boson self-couplings and the role of spin-$1$ polarizations
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