1999/05/20 by G. Borisov, Borisov, G., F. Richard +1 · 2 citations
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #Superconducting Materials and Applications #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9905413
12 pages
arxiv created 1999/05/20 · openalex publication_date 1999/05/20 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Assuming a SM or MSSM scenario, one expects a light Higgs boson which could be studied in great detail with a LC operating at √ s>mh+mZ. In the TESLA scenario, with 500 fb-1 accumulated at √ s = 350 GeV, about 105 hZ events could be produced through the Higgstrahlung process. At a future LC with a ∼ 1 cm beam-pipe radius and a thin Si detector there will be excellent separation between the various flavours. With the high statistics available it will thus become possible to measure the various branching ratios with a few % error. Typically one expects 8 % precision on BR(h→ cc), 6 % on BR(h→ gg) and ∼ 1 % on σ(hZ) x BR(h→ bb) access to BR(h→ WW^*) and, as explained in section 3, this measurement can give access to the Higgs total decay width and therefore to all partial widths. In particular one can precisely measure Γ(h→ bb) and Γ(h→τ+τ-) which have a high sensitivity to MSSM effects\citegunion and therefore allow an essential test of the Higgs sector. If mA < 1 TeV, it becomes possible to measure a significant deviation and, within MSSM, to give an indirect estimate of mA thus extending the effective sensitivity above the discovery domain of LHC. In the following section we describe a detailed analysis on the measurement of BR(h→ WW^*).