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arXiv 1603.09237hep-ph
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在大型强子对撞机上超越窄宽近似的额外夸克的产生

Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation

Stefano Moretti, Dermot O'Brien, Luca Panizzi, Hugo Prager

摘要:

本文研究了在大型强子对撞机(LHC)上有限宽度和背景干涉对2/3荷超重夸克对产生和衰变的影响。这种动态通常被忽略在标准的实验搜索,我们在这里评估的有效性的区域,目前的方法,也评估了一组在8和13 TeV的性能的当前的实验分析的排除区域在$(M_{\rm VLQ},Γ_{\rm VLQ})$平面,$M_{\rm VLQ}$的质量的VLQ和$Γ_{\rm VLQ}$其宽度的recummination。此外,我们讨论了配置的质量,宽度和耦合,后者打破。

英文摘要:

This paper explores the effects of both finite width and interference (with background) in the pair production and decay of extra heavy quarks with charge 2/3 at the Large Hadron Collider (LHC). This dynamics is normally ignored in standard experimental searches and we assess herein the regions of validity of current approaches, also evaluating the performances of a set of current experimental analyses at 8 and 13 TeV for the deterimination of the excluded regions in the $(M_{\rm VLQ},Γ_{\rm VLQ})$ plane, $M_{\rm VLQ}$ being the mass of the VLQ and $Γ_{\rm VLQ}$ its width. Further, we discuss the configurations of masses, widths and couplings where the latter breaks down.

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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