arXiv subjects

Shi-Hai Zhu

Publications and source records attributed to Shi-Hai Zhu.

4 recordsLinked to original sources

arXiv2008

Production of the neutral top-pion $π_{t}^{0}$ in association with a high-$p_{T}$ jet at the $LHC$

In the framework of the topcolor-assisted technicolor $(TC2)$ model, we study production of the neutral top-pion $π_{t}^{0}$ in association with a high-$p_{T}$ jet at the $LHC$, which proceeds via the partonic processes $gg\longrightarrow π_{t}^{0}g$, $gq\longrightarrow π_{t}^{0}q$, $q\bar{q}\longrightarrow π_{t}^{0}g$, $gb(\bar{b})\longrightarrow π_{t}^{0}b(\bar{b})$, and $b\bar{b}\longrightarrow π_{t}^{0}g$. We find that it is very challenging to detect the neutral top-pion $π_{t}^{0}$ via the process $pp\longrightarrow π_{t}^{0}+jet+X\to t\bar{t}+jet+X$, while the possible signatures of $π_{t}^{0}$ might be detected via the process $pp\longrightarrow π_{t}^{0}+jet+X\to(\bar{t}c+t\bar{c})+jet+X$ at the $LHC$.

hep-ph↗

arXiv2008

Leptonic $Z$ decays in the littlest $Higgs$ model with T-parity

The littlest $Higgs$ model with T-parity (called the $LHT$ model) predicts the existence of the T-odd leptons, which can generate contributions to some leptonic processes at the one-loop level. We calculate their contributions to the leptonic $Z$ decay processes $Z\to l\bar{l'}$, $Z\to l\bar{l}$, and $Z\rightarro ν\barν$. We find that the T-odd leptons can give significant contributions to the branching ratios of these decay processes in most of the parameter space. The experimental measurement values might generate constraints on the free parameters of the $LHT$ model.

hep-ph↗

arXiv2007

Associated production of the scalars and new gauge bosons from a little Higgs model at the LHC

The littlest Higgs model with T-parity ($LHT$ model) predicts the existence of the T-odd scalars ($ϕ^{\pm}$, $ϕ^{0}$, and $ϕ^{p}$). We consider production of these new particles associated with T-odd gauge bosons at the $LHC$. We find that the partonic process $q\bar{q'}\toϕ^{+}B_{H}$ can generate a number of the characteristic signal events with a charged lepton and large missing energy at the $LHC$.

hep-ph↗

arXiv2007

Pair production of the heavy leptons in future high energy linear e^{+}e^{-} colliders

The littlest Higgs model with T-parity predicts the existence of the T-odd particles, which can only be produced in pair. We consider pair production of the T-odd leptons in future high energy linear $e^{+}e^{-}$ collider ($ILC$). Our numerical results show that, as long as the T-odd leptons are not too heavy, they can be copiously produced and their possible signals might be detected via the processes $e^{+}e^{-}\to \bar{L}_{i}L_{j}$ in future $ILC$ experiments.

hep-ph↗