Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-12-20
Phys.Lett.B668:24-27,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
Scientific paper
10.1016/j.physletb.2008.08.024
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.
Cao Qing-Hong
Li Chong Sheng
Yuan C.--P.
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