SEARCH FOR A HIGGS BOSON IN ASSOCIATION WITH A PAIR OF TOP QUARKS WITH THE ATLAS DETECTOR

被引：0
作者：
Michael, Tim [1 ]
Wolf, Heinz [1 ]
机构：
[1] Nikhef, Sci Pk 105, NL-1098XG Amsterdam, Netherlands
来源：
ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT | 2018年 / 11卷 / 02期
关键词：
D O I：
10.5506/APhysPolBSupp.11.257
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The production of a Higgs boson in association with a pair of top quarks (t (t) over barH) is one of the main Higgs production channels at the LHC which is yet unobserved. In the recent publications, the ATLAS Collaboration claims evidence for the process using the data collected in 2015 and 2016 at the LHC. The process offers direct sensitivity to the top-Yukawa coupling which is the largest fermion coupling to the Higgs. Any deviation of the top-Yukawa coupling measured directly and compared to indirect constraints would provide a hint towards new physics. In the context of t (t) over barH, the H -> b (b) over bar decay is of particular interest due to the large branching ratio and it is, therefore, potentially offering high sensitivity to the top-Yukawa coupling. The goal of this paper is to summarize the recent progress in t (t) over barH(b (b) over bar) analysis contrasting the strategy employed by ATLAS in 2016 with the new publication in 2017.
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页码：257 / 265
页数：9
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