当前位置: X-MOL 学术Phys. Rev. Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Determination of the Relative Sign of the Higgs Boson Couplings to W and Z Bosons Using WH Production via Vector-Boson Fusion with the ATLAS Detector
Physical Review Letters ( IF 8.1 ) Pub Date : 2024-10-02 , DOI: 10.1103/physrevlett.133.141801
G. Aadet al.(ATLAS Collaboration)

The associated production of Higgs and W bosons via vector-boson fusion is highly sensitive to the relative sign of the Higgs boson couplings to W and Z bosons. In this Letter, two searches for this process are presented, using 140fb1 of proton-proton collision data at s=13TeV recorded by the ATLAS detector at the LHC. The first search targets scenarios with opposite-sign couplings of the W and Z bosons to the Higgs boson, while the second targets standard model-like scenarios with same-sign couplings. Both analyses consider Higgs boson decays into a pair of b quarks and W boson decays with an electron or muon. The data exclude the opposite-sign coupling hypothesis with a significance beyond 5σ, and the observed (expected) upper limit set on the cross section for vector-boson fusion WH production is 9.0 (8.7) times the standard model value at 95% confidence level.

中文翻译:


使用 ATLAS 检测器通过矢量-玻色子融合使用 WH 产生来确定希格斯玻色子耦合与 W 和 Z 玻色子的相对符号



通过矢量-玻色子聚变产生的希格斯和 b < 0> 玻色子对希格斯玻色子耦合和 W Z 玻色子的相对符号高度敏感。在这封信中,提出了对这个过程的两种搜索,使用 140fb1 LHC 的 ATLAS 探测器 s=13TeV 记录的质子-质子碰撞数据。第一个搜索对象是 和 W Z 玻色子与希格斯玻色子的相反符号耦合的场景,而第二个搜索对象是具有相同符号耦合的标准模型类场景。两种分析都认为希格斯玻色子衰变为一对 b 夸克,玻 W 色子衰变为电子或 μ 子。数据排除了显著性超出 5σ 的相反符号耦合假设,并且在向量-玻色子聚变 WH 产生的横截面上设置的观测(预期)上限是 95% 置信度下标准模型值的 9.0 (8.7) 倍。
更新日期:2024-10-03
down
wechat
bug