在苏(3 ) 简单的组模型，到一些有以 SM 修理的政变石楠的 SM 费米子的新中立计量器波色子 Z' 夫妇计量政变石楠并且仅仅取决于嵌入的费米子的选择。在这篇论文，我们计算这个新粒子的贡献到过程 e <SUP>+</SUP > e <...在苏(3 ) 简单的组模型，到一些有以 SM 修理的政变石楠的 SM 费米子的新中立计量器波色子 Z' 夫妇计量政变石楠并且仅仅取决于嵌入的费米子的选择。在这篇论文，我们计算这个新粒子的贡献到过程 e <SUP>+</SUP > e <SUP>−</SUP>→
l <SUP>+</SUP > 经由这些检测这个新粒子的可能性在未来处理的 l <SUP>−</SUP>, b，和 c 和学习高精力的线性 e <SUP>+</SUP > 有 500 GeV 和￡ < 代替的 √s = 的 e <SUP>−</SUP> collider (LC ) 实验 > int </SUB>= 340 fb <SUP>−1</SUP> 。我们发现新计量器波色子 Z' 对过程 e <SUP>+</SUP 很敏感 > e <SUP>−</SUP>→
b。只要 M <SUB >Z'</SUB>≤
2 TeV，相对修正参数的绝对值比 5% 大。我们为过程 e <SUP>+</SUP 计算提交向后不对称现象和左右的不对称现象 > e <SUP>−</SUP>→
c，与两个通用、没有异例的费米子嵌入钟声。Z' 群众上的界限也在 95% 信心水平以内被估计。展开更多
The gauge extension of the standard model with the U(1)_(B-L+xY) symmetry predicts the existence of a light gauge boson Z' with small couplings to ordinary fermions. We discuss its contributions to the muon anomal...The gauge extension of the standard model with the U(1)_(B-L+xY) symmetry predicts the existence of a light gauge boson Z' with small couplings to ordinary fermions. We discuss its contributions to the muon anomalous magnetic moment a_μ. Taking account of the constraints on the relevant free parameters, we further calculate the contributions of the light gauge boson Z' to the Higgs-strahlung processes e^+e^-→ ZH and e^+e^-→ Z'H.展开更多
The topcolor-assisted technicolor model (TC2) predicts a non-universal Z' gauge boson,which couples to the third generation fermions with enhanced strength.We study the effects of this non-universal gauge boson on...The topcolor-assisted technicolor model (TC2) predicts a non-universal Z' gauge boson,which couples to the third generation fermions with enhanced strength.We study the effects of this non-universal gauge boson on the cross section and spin correlation of top quark pair production through the process 99 →t at the LHC.We find that the total cross section and the spin correlation can be reduced by-4.7% and-1.4% respectively in the allowed parameter space.展开更多
We discuss the observability of the non-universal bosons Z′ predicted by topcolor-assisted technicolor(TC2) models in the near future high-energy linear e^+e^- collider (LC) experiments via studying its contributions...We discuss the observability of the non-universal bosons Z′ predicted by topcolor-assisted technicolor(TC2) models in the near future high-energy linear e^+e^- collider (LC) experiments via studying its contributions to the processes e^+e^- → bb^- and ττ^-. We find that the signals of the new particle Z′ can be detected by measuring the relative corrections to the cross sections and the ratio of signal over square root of the background S/√B for these two processes in the LC experiments. In most of the parameter space of TC2 models, it is difficult to observe the virtual effects of the Z′ exchange on the forward-backward asymmetries AFB (bb^-) and AFB (ττ^-).展开更多
基金supported in part by a grant from Henan Institute of Science and Technology under Grant No.06040
文摘在苏(3 ) 简单的组模型，到一些有以 SM 修理的政变石楠的 SM 费米子的新中立计量器波色子 Z' 夫妇计量政变石楠并且仅仅取决于嵌入的费米子的选择。在这篇论文，我们计算这个新粒子的贡献到过程 e <SUP>+</SUP > e <SUP>−</SUP>→
l <SUP>+</SUP > 经由这些检测这个新粒子的可能性在未来处理的 l <SUP>−</SUP>, b，和 c 和学习高精力的线性 e <SUP>+</SUP > 有 500 GeV 和￡ < 代替的 √s = 的 e <SUP>−</SUP> collider (LC ) 实验 > int </SUB>= 340 fb <SUP>−1</SUP> 。我们发现新计量器波色子 Z' 对过程 e <SUP>+</SUP 很敏感 > e <SUP>−</SUP>→
b。只要 M <SUB >Z'</SUB>≤
2 TeV，相对修正参数的绝对值比 5% 大。我们为过程 e <SUP>+</SUP 计算提交向后不对称现象和左右的不对称现象 > e <SUP>−</SUP>→
c，与两个通用、没有异例的费米子嵌入钟声。Z' 群众上的界限也在 95% 信心水平以内被估计。
基金Supported by the National Natural Science Foundation of China under Grant Nos 11275088 and 11545012the Natural Science Foundation of Liaoning Scientific Committee under Grant No 2014020151
文摘The gauge extension of the standard model with the U(1)_(B-L+xY) symmetry predicts the existence of a light gauge boson Z' with small couplings to ordinary fermions. We discuss its contributions to the muon anomalous magnetic moment a_μ. Taking account of the constraints on the relevant free parameters, we further calculate the contributions of the light gauge boson Z' to the Higgs-strahlung processes e^+e^-→ ZH and e^+e^-→ Z'H.
基金Supported by the Natural Science Foundation of Jiangsu Province under Grant No BK20130387the Fundamental Research Funds for the Central Universities under Grant No 2242014R30011
文摘The topcolor-assisted technicolor model (TC2) predicts a non-universal Z' gauge boson,which couples to the third generation fermions with enhanced strength.We study the effects of this non-universal gauge boson on the cross section and spin correlation of top quark pair production through the process 99 →t at the LHC.We find that the total cross section and the spin correlation can be reduced by-4.7% and-1.4% respectively in the allowed parameter space.
文摘We discuss the observability of the non-universal bosons Z′ predicted by topcolor-assisted technicolor(TC2) models in the near future high-energy linear e^+e^- collider (LC) experiments via studying its contributions to the processes e^+e^- → bb^- and ττ^-. We find that the signals of the new particle Z′ can be detected by measuring the relative corrections to the cross sections and the ratio of signal over square root of the background S/√B for these two processes in the LC experiments. In most of the parameter space of TC2 models, it is difficult to observe the virtual effects of the Z′ exchange on the forward-backward asymmetries AFB (bb^-) and AFB (ττ^-).
