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We study two-body decays of a new neutral pseudoscalar into gauge bosonswithin the context of the Littlest Higgs model. Concretely, the $\Phi^P \to WW,VV, gg$ processes induced at the one-loop level, with $V=\gamma, Z$, areconsidered. Since the branching ratios of the $\Phi^P \to VV$ decays resultvery suppressed, only the $\Phi^P \to WW, gg$ processes are thoroughly studied.The branching ratios for the $\Phi^P \to gg$ and $\Phi^P \to WW$ decays are ofthe order of $10^{-4}$ and $10^{-6}$, respectively, for $f$ around 2 TeV, whichrepresents the global symmetry breaking scale of the theory. The productioncross section of the $\Phi^P$ boson via gluon fusion at LHC is estimated.

Heavy neutral pseudoscalar decays into gauge bosons in the Littlest Higgs Model