高能物理与核物理
高能物理與覈物理
고능물리여핵물리
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS
2007年
7期
607-611
,共5页
最小Higgs模型%T宇称%产生截面
最小Higgs模型%T宇稱%產生截麵
최소Higgs모형%T우칭%산생절면
littlest Higgs model%T-parity%cross section
在最小Higgs模型和T宇称下的最小Higgs模型中,计算了单个顶夸克的产生过程e-γ→νeb(t)的产生截面,并讨论了这两种模型对该过程产生截面的贡献.发现在合适的参数范围内,来自T宇称下的最小Higgs模型中对Wtb耦合的修正项对该过程产生截面的相对修正大于5%,这种影响能在将来的直线对撞机实验中探测到.然而,在最小Higgs模型中,新的规范玻色子W±H对该过程的贡献非常小.
在最小Higgs模型和T宇稱下的最小Higgs模型中,計算瞭單箇頂誇剋的產生過程e-γ→νeb(t)的產生截麵,併討論瞭這兩種模型對該過程產生截麵的貢獻.髮現在閤適的參數範圍內,來自T宇稱下的最小Higgs模型中對Wtb耦閤的脩正項對該過程產生截麵的相對脩正大于5%,這種影響能在將來的直線對撞機實驗中探測到.然而,在最小Higgs模型中,新的規範玻色子W±H對該過程的貢獻非常小.
재최소Higgs모형화T우칭하적최소Higgs모형중,계산료단개정과극적산생과정e-γ→νeb(t)적산생절면,병토론료저량충모형대해과정산생절면적공헌.발현재합괄적삼수범위내,래자T우칭하적최소Higgs모형중대Wtb우합적수정항대해과정산생절면적상대수정대우5%,저충영향능재장래적직선대당궤실험중탐측도.연이,재최소Higgs모형중,신적규범파색자W±H대해과정적공헌비상소.
In the framework of the littlest Higgs(LH) model and the littlest Higgs model with T-parity(LHT),we investigate the single top production process e-γ→νeb(t), and calculate the corrections of these two models to the cross section of this process. We find that in the reasonable parameter space, the correction terms for the tree-level Wtb couplings coming from the LHT model can generate significantly corrections to the cross section of this process, which might be detected in the future high energy linear e+e- collider(ILC) experiments.However, the contributions of the new gauge boson W±H predicted by the LH model to this process are very small.