Discovering the h ← Zγ decay in t(t)over-bar associated production

被引：3
|
作者：
Goertz, Florian [1 ]
Madge, Eric [2 ,3 ]
Schwaller, Pedro [2 ,3 ]
Tenorth, Valentin Titus [1 ]
机构：
[1] Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany
[2] Johannes Gutenberg Univ Mainz, PRISMA Cluster Excellence, D-55099 Mainz, Germany
[3] Johannes Gutenberg Univ Mainz, Mainz Inst Theoret Phys, D-55099 Mainz, Germany
来源：
PHYSICAL REVIEW D | 2020年 / 102卷 / 05期
关键词：
LHC;
D O I：
10.1103/PhysRevD.102.053004
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We explore the prospects to discover the h -> Z gamma decay in t (t) over bar -associated production, featuring a signal-tobackground ratio of O(1). Performing a detailed analysis of the semileptonic t (t) over bar -decay channel, we demonstrate that the production mode could lead to a similar to 5 sigma discovery at the high-luminosity LHC, while the effective hZ gamma coupling could be extracted with a similar to 15% accuracy. Extending the analysis to potential future pp colliders with 27 TeV and 100 TeV center-of-mass energies, we also show that the latter would allow precision measurements at the few percent level, rendering possible precise extractions of the spin and CP properties of the Higgs boson.
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页数：7
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