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arXiv 1306.2656hep-ph
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弯曲空间类矢量夸克的LHC签名

LHC Signatures of Warped-space Vectorlike Quarks

Shrihari Gopalakrishna, Tanumoy Mandal, Subhadip Mitra, Grégory Moreau

摘要:

本文研究了TeV标度矢量类夸克$b'$、$t'$和$χ$的LHC签名,这些夸克的电磁荷分别为-1/3,2/3和5/3,它们出现在许多超越标准模型(BSM)的扩展中.我们考虑扭曲的额外的维模型和分析的现象,这种矢量夸克的监护伙伴的第三代夸克。除了通常研究的依赖于强耦合的对产生通道外,我们同样强调依赖于电弱耦合的单产生通道和电弱对称性破缺诱导的重矢量类夸克和标准模型夸克之间的混合效应。我们确定了新的有前途的$gg$发起的对和单生产渠道,并发现这些国家在大型强子对撞机所需的光度。对于这些渠道,我们提出了一个削减,允许一个提取相关的电弱耦合。虽然动机是从扭曲的模型,我们提出了我们的许多结果模型独立。

英文摘要:

We study the LHC signatures of TeV scale vectorlike quarks $b'$, $t'$ and $χ$ with electromagnetic charges -1/3, 2/3 and 5/3 that appear in many beyond the standard model (BSM) extensions. We consider warped extra-dimensional models and analyze the phenomenology of such vectorlike quarks that are the custodial partners of third generation quarks. In addition to the usually studied pair-production channels which depend on the strong coupling, we put equal emphasis on single production channels that depend on electroweak couplings and on electroweak symmetry breaking induced mixing effects between the heavy vectorlike quarks and standard model quarks. We identify new promising $gg$-initiated pair and single production channels and find the luminosity required for discovering these states at the LHC. For these channels, we propose a cut that allows one to extract the relevant electroweak couplings. Although the motivation is from warped models, we present many of our results model-independently.

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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