1996/02/05 by J. Kamoshita, Y. Okada, Kamoshita, J. +8
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9602224
10 pages, 7 figures included
arxiv created 1996/02/05 · openalex publication_date 1996/02/05 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The physics prospect at future linear e+e- colliders for the study of the Higgs triple self-coupling via the process of e+e- → Zhh is investigated. The measurement of this cross section leads us to the first non-trivial information on the Higgs potential. We found that the Standard Model and the model without the Higgs self-coupling can be distinguished at the level of one standard deviation for a rather light Higgs mass with 100 fb-1 integrated luminosity. In the MSSM, the cross section is enhanced if the production of at least one of heavy Higgs bosons (H or A) and its subsequent decay (H → hh, A → Zh) are kinematically allowed. When such processes are not allowed, the cross section in the region of small mA is significantly suppressed relative to the SM cross section.