Advertisement

Possible enhancement of the \(e^+e^- \rightarrow H^\pm W^\mp\) cross section in the two-Higgs-doublet model

  • S. Kanemura
Theoretical physics

Abstract.

The production process of the charged Higgs boson associated with a W boson at electron–positron colliders is discussed in the two-Higgs-doublet model (2HDM) and in the minimal supersymmetric standard model (MSSM). The process is induced at one-loop level in these models. We examine how much the cross section can be enhanced by quark- and Higgs-loop effects. In the non-SUSY 2HDM, in addition to large top–bottom (tb) loop effects for small \(\tan \beta (\ll (m_t/m_b)^{1/2})\), the Higgs-loop diagrams can contribute to the cross section to some extent for moderate \(\tan \beta\) values. For larger \(\tan \beta\) (\(\gg (m_t/m_b)^{1/2}\)), such an enhancement by the Higgs non-decoupling effects is bounded by the requirement of the validity of perturbation theory. In the MSSM with heavy superpartner particles, only the tb loops enhance the cross section while Higgs-loop effects are very small.

Keywords

Production Process Perturbation Theory Higgs Boson Minimal Supersymmetric Standard Model Charged Higgs Boson 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • S. Kanemura
    • 1
  1. 1.Institut für Theoretische Physik der Universität Karlsruhe, 76128 Karlsruhe, GermanyDE

Personalised recommendations