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arXiv 0807.5051hep-ph
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LHC四站无希格斯粒子模型的Drell-Yan生产

Drell-Yan production at the LHC in a four site Higgsless model

E. Accomando, S. De Curtis, D. Dominici, L. Fedeli

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36 pages, 25 figures, references, figures and content added
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摘要：

本文考虑了一个基于$SU(2)_L\times SU(2)_1\times SU(2)_2\times U(1)_Y$规范对称性的四格点无希格斯玻色子模型，它预言了两个中性和四个带电的额外规范玻色子：$Z_{1,2}$和$W^\pm_{1,2}$。我们计算的新粒子的属性，并推导出间接和直接限制他们的质量和耦合LEP和Tevatron数据。与其他的无希格斯玻色子模型不同，这里的费米子-玻色子耦合是由电弱精确数据所允许的。因此，在LHC的有利的Drell-Yan通道中检测新的预测粒子的前景进行了研究。结果是所有六个额外的规范玻色子都可以在LHC低光度运行的早期阶段被发现。

英文摘要：

We consider a four site Higgsless model based on the $SU(2)_L\times SU(2)_1\times SU(2)_2\times U(1)_Y$ gauge symmetry, which predicts two neutral and four charged extra gauge bosons, $Z_{1,2}$ and $W^\pm_{1,2}$. We compute the properties of the new particles, and derive indirect and direct limits on their masses and couplings from LEP and Tevatron data. In contrast to other Higgsless models, characterized by fermiophobic extra gauge bosons, here sizeable fermion-boson couplings are allowed by the electroweak precision data. The prospects of detecting the new predicted particles in the favoured Drell-Yan channel at the LHC are thus investigated. The outcome is that all six extra gauge bosons could be discovered in the early stage of the LHC low-luminosity run.

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