论文标题
Higgs的自我耦合测量值在未来的Proton-Proton Colliders：雪地白皮书
Higgs Self Couplings Measurements at Future proton-proton Colliders: a Snowmass White Paper
论文作者
论文摘要
希格斯玻色子三线性和四分之一的自耦合与希格斯电位的形状直接相关。用精度测量它们非常重要，因为它们提供了有关电动对称性破坏和电动相位过渡的宝贵信息。在本文中，我们通过Gluon Gluon融合过程对双Higgs玻色子的产生进行了详细的分析，在最有前途的衰减频道中，di-to-tobottom-quark di-photon，di-bottom-quark di-tau di-photons，di-quark di-tau，以及几个未来的界限：在14 tev and the tev和fcc fcc fcc fcc fcc fcclipers：综合光度的AB。在HL LHC方案中，我们预计在95％置信度下，DI Higgs横截面产生的上限为0.76，对应于2.8 Sigma的显着性。在FCC-HH的情况下，根据假定的检测器性能和系统的不确定性，我们希望HigGS的自耦合将在95％的置信度下以4.8-8.5％的范围为4.8-8.5％。
The Higgs boson trilinear and quartic self-couplings are directly related to the shape of the Higgs potential; measuring them with precision is extremely important, as they provide invaluable information on the electroweak symmetry breaking and the electroweak phase transition. In this paper, we perform a detailed analysis of double Higgs boson production, through the gluon gluon fusion process, in the most promising decay channels di-bottom-quark di-photons, di-bottom-quark di-tau, and four-bottom-quark for several future colliders: the HL-LHC at 14 TeV and the FCC-hh at 100 TeV, assuming respectively 3 inverse ab and 30 inverse ab of integrated luminosity. In the HL LHC scenario, we expect an upper limit on the di Higgs cross section production of 0.76 at 95% confidence level, corresponding to a significance of 2.8 sigma. In the FCC-hh scenario, depending on the assumed detector performance and systematic uncertainties, we expect that the Higgs self-coupling will be measured with a precision in the range 4.8-8.5% at 95% confidence level.
