Search for a light extra gauge boson in Littlest Higgs model at a linear collider

Abstract

Littlest Higgs model predicts some extra particles beyond the Standard Model. Among them, an extra neutral gauge boson A_H is lightest and its mass could be a few hundred GeV. We study production and decay of A_H at future e^+ e^- inear collider and compare them with those of Z' bosons in supersymmetric (SUSY) E_6 models. We find that, if the extra gauge boson mass is smaller than \sqrt{s} of the linear collider, the forward-backward asymmetries of b- and c-quarks at the A_H pole differ significantly from those given by the Z' bosons, and are useful to test the littlest Higgs model and SUSY E_6 models.

5 pages, 3 figures, version to appear in Phys.Rev.D

Cited by in corpus (17)

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• Models of Little Higgs and Electroweak Precision Tests
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• New gauge boson $B_H$ production associated with W boson pair via $\gamma \gamma$ collision in the littlest Higgs model
• Forward-backward asymmetry in the gauge-Higgs unification at the International Linear Collider
• The correction of the littlest Higgs model to the Higgs production process $e^{+}{e}^{-}\to e^{+}{e}^{-}H$ at the ILC
• Higgs boson pair production process $e^{+}{e}^{-}\to ZHH$ in the littlest Higgs model at the ILC
• Single production of the vector-like top quark in the littlest Higgs model at TeV energy $e^{-}\gamma$ colliders
• The littlest Higgs model and Higgs boson associated production with top quark pair at high energy linear $e^{+}{e}^{-}$ collider
• The relationship between minimum gap and success probability in adiabatic quantum computing
• On-shell $WW\gamma$ vertex in the T-Parity and non T-Parity Littlest Higgs model
• Probing the lightest new gauge boson $B_H$ in the littlest Higgs model via the processes $\gamma \gamma \to f\bar{f}{B}_H$ at the ILC
• Single production of the gauge boson $W$ via polarized $e^{-}\gamma$ collisions in the 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