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arXiv 0704.3458hep-phastro-phhep-ex
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在LHC上寻找Lee-Wick规范玻色子

Searching for Lee-Wick Gauge Bosons at the LHC

Thomas G. Rizzo

摘要:

在基于Lee和Wick思想的标准模型的扩展中,Grinstein、O 'Connell和Wise发现了一种有趣的方法,可以消除辐射修正对希格斯质量的二次发散贡献。从现象学上讲,该模型预测了太尺度的存在,通常的SM字段的负范数副本具有相当独特的属性:幽灵般的传播和负衰减宽度,但与其他SM一样的耦合。该模型在宏观尺度上既是单一的,又是因果的。在本文中,我们研究是否这些不寻常的属性可以唯一地确定为这样的状态在大型强子对撞机。我们发现,在扩展的强和电弱规范玻色子部门的模型,这是最简单的分析,这样的识别可能是相当困难的。在双喷射通道中对重胶子共振的观测为这种识别提供了最好的希望。

英文摘要:

In an extension of the Standard Model(SM) based on the ideas of Lee and Wick, Grinstein, O'Connell and Wise have found an interesting way to remove the usual quadratically divergent contributions to the Higgs mass induced by radiative corrections. Phenomenologically, the model predicts the existence of Terascale, negative-norm copies of the usual SM fields with rather unique properties: ghost-like propagators and negative decay widths, but with otherwise SM-like couplings. The model is both unitary and causal on macroscopic scales. In this paper we examine whether or not such states with these unusual properties can be uniquely identified as such at the LHC. We find that in the extended strong and electroweak gauge boson sector of the model, which is the simplest one to analyze, such an identification can be rather difficult. Observation of heavy gluon-like resonances in the dijet channel offers the best hope for this identification.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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