Signatures of Extra Gauge Bosons in the Littlest Higgs Model with T-parity at Future Colliders

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dc.creatorCao, Qing-Hong
dc.creatorChen, Chuan-Ren
dc.date2007-07-05
dc.date2007-09-07
dc.date.accessioned2026-07-07T10:56:37Z
dc.date.available2026-07-07T10:56:37Z
dc.descriptionWe study the collider signatures of a T-odd gauge boson $W_{H}$ pair production in the Littlest Higgs Model with T-parity (LHT) at Large Hadron Collider (LHC) and Linear Collider (LC). At the LHC, we search for the $W_{H}$ boson using its leptonic decay, i.e. $pp\to W_{H}^{+}W_{H}^{-}\to A_{H}A_{H}\ell^{+}ν_{\ell}\ell^{\prime-}\barν_{\ell^{\prime}}$, which gives rise to a collider signature of $\ell^{+}\ell^{\prime-}+\met$. We demonstrate that the LHC not only has a great potential of discovering the $W_{H}$ boson in this channel, but also can probe enormous parameter space of the LHT. Due to four missing particles in the final state, one cannot reconstruct the mass of $W_{H}$ at the LHC. But such a mass measurement can be easily achieved at the LC in the process of $e^{+}e^{-}\to W_{H}^{+}W_{H}^{-}\to A_{H}A_{H}W^{+}W^{-}\to A_{H}A_{H}jjjj$. We present an algorithm of measuring the mass and spin of the $W_{H}$ boson at the LC. Furthermore, we illustrate that the spin correlation between the $W$ boson and its mother particle ($W_{H}$) can be used to distinguish the LHT from other new physics models.
dc.descriptionversion to appear in PRD (a few references added)
dc.identifierhttps://arxiv.org/abs/0707.0877
dc.identifierhttp://arxiv.org/abs/0707.0877
dc.identifierPhys.Rev.D76:075007,2007
dc.identifierdoi:10.1103/PhysRevD.76.075007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186471
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSignatures of Extra Gauge Bosons in the Littlest Higgs Model with T-parity at Future Colliders
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