2007/10/31 by J. L. Diaz-Cruz, J. Lorenzo Díaz-Cruz, J. Hernandez-Sanchez +4
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.77.035007
published as Phys.Rev.D77:035007,2008 · 49 pages, 43 figures
arxiv created 2008/01/03 · openalex publication_date 2008/02/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
We present a detailed study of the Higgs sector within an extension of the minimal supersymmetric standard model that includes one complex Higgs triplet (MSSM+1CHT). The model spectrum includes three singly charged Higgs bosons as well as three CP-even (or scalar) and two CP-odd (or pseudoscalar) neutral Higgs bosons. We present an approximated calculation of the one-loop radiative corrections to the neutral CP-even Higgs masses (m_Hi0) and the couplings Hi0Z0Z0 (i=1, 2, 3), which determine the magnitude of the Higgs-strahlung processes e+e^\ensuremath-\ensuremath→Z0Hi0. Limits from LEP2 are then considered, in order to obtain bounds on the neutral Higgs sector. Further, we also include the experimental limits from LEP2 on e+e^\ensuremath-\ensuremath→H+H^\ensuremath- and those on BR(t\ensuremath→bH+) from Tevatron, to derive bounds on the mass of the two lightest charged Higgs bosons (H1^\ifmmode±\else\textpm\fi and H2^\ifmmode±\else\textpm\fi). Concerning the latter, we find some cases, where m_H1^\ifmmode±\else\textpm\fi\ensuremath≃90 GeV, that are not excluded by any experimental bound, even for large values of tan\ensuremathβ, so that they should be looked for at the Large Hadron Collider (LHC).