Two Higgs Doublet Model and model independent interpretation of neutral Higgs boson searches

2000/07/20 by The OPAL collaboration, G. Abbiendi · 7 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #hep-ex

paper · pdf · doi:10.1007/s100520000544

published as Eur.Phys.J.C18:425-445,2001 · 36 pages, 17 figures, submitted to Eur. Phys. J. C

arxiv created 2000/07/20 · openalex publication_date 2001/01/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

Searches for the neutral Higgs bosons h0 and A0, are used to obtain limits on the Type II Two Higgs Doublet Model (2HDM(II)) with no CP-violation in the Higgs sector and no additional particles besides the five Higgs bosons. The analysis combines approximately 170 pb-1 of data collected with the OPAL detector at sqrts ~ 189 GeV with previous runs at sqrts ~ mZ and sqrts ~ 183 GeV. The searches are sensitive to the h0, A0 -> qq, gg, tau+tau- and h0 -> A0A0 decay modes of the Higgs bosons. For the first time, the 2HDM(II) parameter space is explored in a detailed scan, and new flavour independent analyses are applied to examine regions in which the neutral Higgs bosons decay predominantly into light quarks or gluons. Model-independent limits are also given.

Cited by

• Searching for Nambu-Goldstone bosons at the LHC
• About a peculiar extraU(1):Z′discovery limit, muon anomalous magnetic moment, and electron electric dipole moment
• Supersymmetric enhancement of associatedZA0production ate+e−colliders
• The light Higgs window in the 2HDM at GigaZ
• The MSSM fine tuning problem: a way out
• Searching for a light fermiophobic Higgs boson at the Fermilab Tevatron
• Higgs bosons decay into bottom-strange in two Higgs doublets models