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

Abstract

We study two-body decays of a new neutral pseudoscalar into gauge bosons within the context of the Littlest Higgs model. Concretely, the ${\Phi }^P\to WW,VV,gg$ processes induced at the one-loop level, with $V=\gamma ,Z$, are considered. Since the branching ratios of the ${\Phi }^P\to VV$ decays result very 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 of the order of $10^{-4}$ and $10^{-6}$, respectively, for $f$ around 2 TeV, which represents the global symmetry breaking scale of the theory. The production cross section of the ${\Phi }^P$ boson via gluon fusion at LHC is estimated.

12 pages and 9 figures

References in corpus (9)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Search for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at sqrt(s) = 8 TeV
• Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at sqrt(s) = 8 TeV
• Long Lived Light Scalars as Probe of Low Scale Seesaw Models
• Can the 125 GeV Higgs be the Little Higgs?
• Analyzing the CP Nature of a New Scalar Particle via S->Zh Decay
• Hidden particle production at the ILC
• Investigating the jet activity accompanying the production at the LHC of a massive scalar particle decaying into photons

Cited by in corpus (1)

• Phenomenological implications of the new Littlest Higgs model with T-parity