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

dc.creatorYue, Chong-Xing
dc.creatorWang, Wei
dc.creatorZong, Zheng-Jun
dc.creatorZhang, Feng
dc.date2005-04-27
dc.date2005-06-06
dc.date.accessioned2026-07-07T12:25:05Z
dc.date.available2026-07-07T12:25:05Z
dc.descriptionIn the framework of the littlest Higgs($LH$) model, we consider the processes $e^{+}e^{-}\toν\barνH^{0}$ and $e^{+}e^{-}\to W^{*}W^{*}ν\barν\toν\barνt\bar{t}$, 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 $e^{+}e^{-}\toν\barνH^{0}$ 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 $e^{+}e^{-}\to W^{*}W^{*}ν\barν\toν\barνt\bar{t}$ 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.
dc.description22 pages, 9 figures; references added, some typos corrected; version to be published in Eur.Phys.J.C
dc.identifierhttps://arxiv.org/abs/hep-ph/0504253
dc.identifierhttp://arxiv.org/abs/hep-ph/0504253
dc.identifierEur.Phys.J.C42:331-339,2005
dc.identifierdoi:10.1140/epjc/s2005-02313-y
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214515
dc.subjectHigh Energy Physics - Phenomenology
dc.titleProbing signals of the littlest Higgs model via the $WW$ fusion processes at the high energy $e^{+}e^{-}$ collider
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