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arXiv 1807.03576hep-ph
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$t$ -通道单顶生产和衰变的有效操作员

Effective operators in $t$-channel single top production and decay

M. de Beurs, E. Laenen, M. Vreeswijk, E. Vryonidou

摘要:

在QCD的NLO精度下研究了$t$ -通道中单个顶夸克的产生及其随后的衰变,并从标准模型有效理论中得到了相应的6维有效算符。我们检查各种运动学和角分布的质子-质子碰撞在大型强子对撞机在13 TeV,为了评估这些运营商的敏感性,无论有没有顶夸克窄宽度近似。我们的研究结果将有助于设计策略,以建立其系数的界限,包括弱偶极算子的CP破坏量。

英文摘要:

The production of a single top quark in the $t$-channel and its subsequent decay is studied at NLO accuracy in QCD, augmented with the relevant dimension-6 effective operators from the Standard Model Effective Theory. We examine various kinematic and angular distributions for proton-proton collisions at the LHC at 13 TeV, in order to assess the sensitivity to these operators, both with and without the top quark narrow width approximation. Our results will be helpful when devising strategies to establish bounds on their coefficients, including the amount of CP violation of the weak dipole operator.

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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