Impact of Single-Top Measurement to Littlest Higgs Model with T-Parity

Abstract

We show that a precise measurement of the single-top production cross section at the Tevatron and the LHC can strongly constrain the model parameters of the Littlest Higgs model with T-parity. A reduction in the single-top production rate from the Standard Model prediction implies new physics phenomena generated by the heavy T-parity partners of the top quark. We show that the degree of polarization of the top quark produced from the decay of its heavy T-odd partner ($T_{-}$) can be utilized to determine the new physics energy scale, and the mass of $T_{-}$ can be measured from the missing transverse momentum distribution in the $T_{-}{\bar{T}}_{-}$ event.

References in corpus (5)

• Evidence for production of single top quarks and first direct measurement of |Vtb|
• Search for New Physics via Single Top Production at the LHC
• Hunting for the Top Partner in the Littlest Higgs Model with T-parity at the LHC
• Phenomenology of Mirror Fermions in the Littlest Higgs Model with T-Parity
• Search for new physics via single top production at TeV energy $e\gamma$ colliders

Cited by in corpus (14)

• The Top Quark Decay Vertex in Standard Model Extensions
• Single production of the top partners at high energy colliders
• Testing the Littlest Higgs Model with T-parity at the Large Hadron Collider
• Model Independent Constraints Among the Wtb, Zbb, and Ztt Couplings
• Search for single production of the vector-like top partner at the 14 TeV LHC
• Scalar versus fermionic top partner interpretations of $t\bar{t}+E_T^{\mathrm{miss}}$ searches at the LHC
• Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma \gamma$ at the high-luminosity LHC
• Search for single production of a top quark partner via the $T\to th$ and $h\to W{W}^{\ast }$ channels at the LHC
• A concise review on some Higgs-related new physics models in light of current experiments
• tbW vertex in the Littlest Higgs Model with T-parity
• Polarization of top quark in vector-like quark decay
• Little Higgs Dark Matter after PandaX-II/LUX 2016 and LHC Run-1
• The Impact of Kaluza-Klein Excited W Boson on the Single Top at LHC and Comparison with other Models
• Reduction of planar double-box diagram for single-top production via auxiliary mass flow