论文标题

HIGGS探针的Quark接触互动及其与Higgs自我耦合的相互作用

Higgs probes of top quark contact interactions and their interplay with the Higgs self-coupling

论文作者

Alasfar, Lina, de Blas, Jorge, Gröber, Ramona

论文摘要

我们计算了第三代四夸克操作员对单纤维生产和衰减的主要贡献。他们通过循环校正进入希格斯,以衰减胶子,光子和$ b \ bar {b} $,并通过Gluon Fusion生产Higgs,并与顶级夸克对结合。我们表明,在某些情况下,这些循环效应可以比Fort for Forts到顶级Quark数据的效果更好。最后,我们调查了这些四个特里米亚操作员是否可以破坏从拟合到单个higgs数据的三联higgs自耦合的确定。

We calculate the dominant contributions of third generation four-quark operators to single-Higgs production and decay. They enter via loop corrections to Higgs decays into gluons, photons and $b\bar{b}$, and in Higgs production via gluon fusion and in association with top quark pairs. We show that these loop effects can, in some cases, lead to better constraints than those from fits to top quark data. Finally, we investigate whether these four-fermion operators can spoil the determination of the trilinear Higgs self-coupling from fits to single-Higgs data.

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