2017/09/25 by Jiayin Gu, Yingying Li, Ying-Ying Li
Engineering · Mathematics · Physics and Astronomy · #Collider #Gauge (firearms) #Higgs boson #Mathematics #Momentum (technical analysis) #Nuclear physics #Particle Accelerators and Free-Electron Lasers #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Recoil #Standard Model (mathematical formulation) #Variable (mathematics) #hep-ex #hep-ph
paper · pdf · doi:10.1088/1674-1137/42/3/033102
25 pages, 8 figures
arxiv created 2017/09/25 · openalex created_date 2017/10/06 · openalex publication_date 2018/02/01 · arxiv updated 2018/03/14 · openalex updated_date 2026/08/06
It is difficult to measure the WW-fusion Higgs production process at a lepton collider with a center of mass energy of 240-250 GeV due to its small rate and the large background from the Higgsstrahlung process with an invisible Z . We construct a modified recoil mass variable, , defined using only the 3-momentum of the reconstructed Higgs particle, and show that it can separate the WW-fusion and Higgsstrahlung events better than the original recoil mass variable m recoil . Consequently, the variable can be used to improve the overall precisions of the extracted Higgs couplings, in both the conventional framework and the effective-field-theory framework. We also explore the application of the variable in the inclusive cross section measurements of the Higgsstrahlung process, while a quantitive analysis is left for future studies.