Probing the gauge bosons $Z^{\prime }$ and $B^{\prime }$ from the Littlest Higgs model in the high-energy linear $e^{+}{e}^{-}$ colliders

Abstract

The littlest Higgs (LH) model predicts the existence of the new gauge bosons $Z^{\prime }$ and $B^{\prime }$. We calculate the contributions of these new particles to the processes $e^{+}{e}^{-}\to \bar{f}f$ with $f=\tau ,\mu ,b,$ or $c$ and study the possibility of detecting these new particles via these processes in the future high-energy linear $e^{+}{e}^{-}$ collider (LC) experiments with $\sqrt{s}=500GeV$ and ${\pounds }_{int}=340f{b}^{-1}$. We find that, with reasonable values of the parameter preferred by the electroweak precision data, the possible signals of these new particles might be detected. The $Z^{\prime }$ mass $M_{Z^{\prime }}$ can be explored up to $2.8TeV$ via the process $e^{+}{e}^{-}\to \bar{b}b$ for $0.3\le c\le 0.5$ and the $B^{\prime }$ mass $M_{B^{\prime }}$ can be explored up to $1.26TeV$ via the process $e^{+}{e}^{-}\to \bar{l}l$ for $0.64\le c^{\prime }\le 0.73$.

v3: 21 pages, 10 figures, references corrected to match version published in Nucl. Phys. B

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• T Parity and the Littlest Higgs
• The Simplest Little Higgs
• A vector-like heavy quark in the Littlest Higgs model
• Search for a light extra gauge boson in Littlest Higgs model at a linear collider

Cited by in corpus (13)

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• Higgs boson pair production process $e^{+}{e}^{-}\to ZHH$ in the littlest Higgs model at the ILC
• Testing Little Higgs Mechanism at Future Colliders
• Pair production of charged scalars and lepton flavor violating signals in the littlest Higgs model at $e^{+}{e}^{-}$ colliders
• The littlest Higgs model and Higgs boson associated production with top quark pair at high energy linear $e^{+}{e}^{-}$ collider
• $Z_L$ associated pair production of charged Higgs bosons in the littlest Higgs model at $e^{+}{e}^{-}$ colliders
• 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 neutral heavy scalar productions associated with $Z_L$ in the littlest Higgs model at ILC and CLIC
• Constraining parameter space of the Little Higgs model by data of tera-Z factory and ILC