Top-quark pair production as a probe of light top-philic scalars and anomalous Higgs interactions

被引：0
|
作者：
Maltoni, Fabio [1 ,2 ,3 ]
Pagani, Davide [3 ]
Tentori, Simone [1 ]
机构：
[1] Catholic Univ Louvain, Ctr Cosmol Particle Phys & Phenomenol CP3, B-1348 Louvain La Neuve, Belgium
[2] Univ Bologna, Dipartimento Fis & Astron, Via Irnerio 46, I-40126 Bologna, Italy
[3] INFN, Sez Bologna, Via Irnerio 46, I-40126 Bologna, Italy
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 09期
关键词：
Anomalous Higgs Couplings; Higgs Properties; Higher Order Electroweak Calculations; New Light Particles; LOOP; LEVEL;
D O I：
10.1007/JHEP09(2024)098
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We compute the effects due to the virtual exchange (or the soft emission) of a scalar particle with generic couplings to the top quark in tt<overline> pair production at the LHC. We apply the results to two cases of interest, extending and completing previous studies. First, we consider the indirect search for light (m(S) < 2m(t)) top-philic scalars with CP-even and/or CP-odd interactions. Second, we investigate how to set constraints on anomalous Yukawa couplings of the Higgs boson to the top quark. Our results show that the current precision of experimental data together with the accuracy of the SM predictions make such indirect determinations a powerful probe for new physics.
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页数：48
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