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The light Higgs window in the 2HDM at GigaZ

2000/09/17 by M. Krawczyk, Maria Krawczyk, P. Mättig +3
Computer Science · Physics and Astronomy · #Business #Computer science #Distributed and Parallel Computing Systems #Higgs boson #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Window (computing) #World Wide Web #hep-ph

paper · pdf · doi:10.1007/s100520100585

published as Eur.Phys.J.C19:463-469,2001 · Latex file, 11 pages, 6 ps figures

arxiv created 2000/09/17 · openalex publication_date 2001/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The sensitivity to a light Higgs boson in the general 2HDM (II), with a mass below 40 GeV, is estimated for an future e+e- linear collider operating with very high luminosity at the Z peak (GigaZ). We consider a possible Higgs boson production via the Bjorken process, the (hA) pair production, the Yukawa process Z -> b b h(A), -> tau tau h(A), and the decay Z ->h(A)+gamma. Although the discovery potential is considerably extended compared to the current sensitivities, mainly from LEP, the existence of a h or A even with a mass of a few GeV cannot be excluded with two billion Z decays. The need to study the very light Higgs scenario at a linear e+e- collider running at several hundred GeV and the LHC is emphasised.

Citations