论文标题
LHC Dijet角度分布作为对尺寸六的三重Gluon顶点的探针
LHC dijet angular distributions as a probe for the dimension-six triple gluon vertex
论文作者
论文摘要
在没有在LHC上发现新物理学的具体发现的情况下，对标准模型有效现场理论（SMEFT）的全球分析对于查找和描述LHC能量范围以外的新物理学的影响很重要。在可以通过各种测量值来限制的SMEFT操作员中，尺寸六三倍gluon操作员既不涉及Higgs Boson也不涉及顶级夸克，但其变化可以对TOP和HIGGS产生产生可测量的影响。如果没有对其影响的独立限制，则降低了顶部测量和希格斯扇区对新物理的敏感性。我们表明，Dijet角分布是探测三重Gluon操作员的强大可观察到的。我们通过重新解释Dijet事件中搜索新现象的结果，使用35.9 fb $^{ - 1} $ PP碰撞数据以$ \ sqrt {s} $ = 13 TEV由CMS协作执行的PP碰撞数据来设置最严格的限制。获得的三重Gluon操作员强度的限制远低于可以从顶级夸克和希格斯测量结果得出的敏感性，因此在全球SMEFT分析中可以忽略该操作员。
In the absence of a concrete discovery of new physics at the LHC, global analyses of the standard model effective field theory (SMEFT) are important to find and describe the impact of new physics beyond the energy reach of the LHC. Among the SMEFT operators that can be constrained via various measurements, the dimension six triple gluon operator involves neither the Higgs boson nor the top quark, yet its variation can have measurable effects on top and Higgs production. Without independent constraints on its impact, the sensitivity of measurements in the top and Higgs sectors to new physics is reduced. We show that the dijet angular distribution is a powerful observable for probing the triple gluon operator. We set the most stringent limit on the triple gluon effective coupling by reinterpreting the results of a search for new phenomena in dijet events using 35.9 fb$^{-1}$ of pp collision data collected at $\sqrt{s}$ = 13 TeV performed by the CMS collaboration. The obtained limit on the strength of the triple gluon operator is far below the sensitivity of that which can be derived from top quark and Higgs measurements and thus this operator can be neglected in global SMEFT analyses.
