Probing signals of the littlest Higgs model via the $WW$ fusion processes at the high energy $e^{+}{e}^{-}$ collider

Abstract

In the framework of the littlest Higgs($LH$) model, we consider the processes $e^{+}{e}^{-}\to \nu \bar{\nu }{H}^0$ and $e^{+}{e}^{-}\to W^{\ast }{W}^{\ast }\nu \bar{\nu }\to \nu \bar{\nu }t\bar{t}$, and calculate the contributions of new particles to the cross sections of these processes in the future high energy $e^{+}{e}^{-}$ collider($ILC$) with $\sqrt{S}=1TeV$. We find that, with reasonable values of the free parameters, the deviations of the cross sections for the processes $e^{+}{e}^{-}\to \nu \bar{\nu }{H}^0$ from its $SM$ value might be comparable to the future $ILC$ measurement precision. The contributions of the light Higgs boson $H^0$ to the process $e^{+}{e}^{-}\to W^{\ast }{W}^{\ast }\nu \bar{\nu }\to \nu \bar{\nu }t\bar{t}$ are significant large in all of the parameter space preferred by the electroweak precision data, which might be detected in the future $ILC$ experiments. However, the contributions of the new gauge bosons $B_H$ and $Z_H$ to this process are very small.

arXiv comment22 pages, 9 figures; references added, some typos corrected; version to be published in Eur.Phys.J.C

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Cited by in corpus (11)

• Physics at the e+ e- Linear Collider
• Higgs production at future $e^{+}{e}^{-}$ colliders in the Georgi-Machacek model
• Effects of the littlest Higgs model with T-parity on Higgs boson production at high energy $e^{+}{e}^{-}$ colliders
• The correction of the littlest Higgs model to the Higgs production process $e^{+}{e}^{-}\to e^{+}{e}^{-}H$ at the ILC
• Testing Little Higgs Mechanism at Future Colliders
• Single Higgs Boson Production at Electron-Positron Colliders in Gauge-Higgs Unification
• Higgs boson production and decay at $e^{+}{e}^{-}$ colliders as a probe of the Left-Right twin Higgs model
• Single Higgs boson production at $e^{+}{e}^{-}$ colliders in the Littlest Higgs Model with T-parity
• On-shell $WW\gamma$ vertex in the T-Parity and non T-Parity Littlest Higgs model
• The correction of the littlest Higgs model to the Higgs production process $e^{-}\gamma \to {\nu }_e{W}^{-}H$ in $e^{-}\gamma$ collisions
• Higgs boson production in the $U(1{)}_{B-L}$ model at the ILC