158 research outputs found
Top quark pair production via (un)polarized photon collisions in the littlest Higgs model with T-parity at the ILC
We study the top-quark pair production via polarized and unpolarized photon
collisions at the International Linear Collider in the context of the littlest
Higgs model with T-parity. We calculate the production cross section of the
process and find the effects can be more
significant in the polarized photon collision mode than in other
collision modes, and the relative correction can be expected to reach about -1%
in the favorable parameter space
One-loop QCD correction to top pair production in the littlest Higgs model with T-parity at the LHC
In this work, we investigate the one-loop QCD correction to top pair
production in the littlest Higgs model with T-parity at the LHC. We calculate
the relative correction of the top pair production cross section and
top-antitop spin correlation at the LHC for TeV. We find that
the relative corrections of top pair production cross section can reach about
, and the top-antitop spin correlation can reach () at the
8(14) TeV LHC in the favorable parameter space
One-loop effects on top pair production in the littlest Higgs model with T-parity at the LHC
In this work, we systematically investigate the one-loop corrections to
production in the littlest Higgs model with T-parity (LHT) at the
LHC for TeV. We focus on the effects of LHT particles on
cross section, polarization asymmetries, spin correlation and charge
asymmetry at the LHC. We also study the top quark forward-backward asymmetry at
Tevatron and its correlations with the LHC observables. We found that: (1) the
contributions of the LHT particles to production can only reach
about 1% at the 14 TeV LHC. Meanwhile, the anomalous top quark forward-backward
asymmetry at Tevatron is also hardly to be explained in the LHT model. (2) the
parity violating asymmetries in production, such as left-right
asymmetry and the polarization can respectively reach 1.1%
and 0.5%, which may have the potential to provide a signal of LHT at the LHC.Comment: Accepted for publication in the European Physical Journal
Search for production with at the LHC in the littlest Higgs model with T-parity
In the littlest Higgs model with T-parity, we study associated production of
a Higgs and a single top quark at the 14 TeV LHC. We focus on the Higgs to two
photons decay and the semileptonic top decay channel. By performing a fast
detector simulation, we find that the search in the selected channel can
excluded the top partner mass up to 805 (857) GeV for case A (case
B) at confidence level at 14 TeV LHC with the integrated luminosity
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