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Johan Rathsman by the sea

Johan Rathsman

Senior lecturer

Johan Rathsman by the sea

New angles on top quark decay to a charged Higgs

Author

  • David Eriksson
  • Gunnar Ingelman
  • Johan Rathsman
  • Oscar Stal

Summary, in English


To properly discover a charged Higgs Boson (H) requires its spin and couplings to be determined. We investigate how to utilize t spin correlations to analyze the H couplings in the decay t bH
+
bτ
+
ν
τ
. Within the framework of a general Two-Higgs-Doublet Model, we obtain results on the spin analyzing coefficients for this decay and study in detail its spin phenomenology, focusing on the limits of large and small values for tan β. Using a Monte Carlo approach to simulate full hadron-level events, we evaluate systematically how the H τν
τ
decay mode can be used for spin analysis. The most promising observables are obtained from azimuthal angle correlations in the transverse rest frames of t(). This method is particularly useful for determining the coupling structure of H in the large tan β limit, where differences from the SM are most significant.

Publishing year

2008-02-13

Language

English

Publication/Series

Journal of High Energy Physics

Volume

2008

Issue

JHEP01(2008)

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • Beyond standard model
  • Hadronic colliders
  • Higgs physics
  • Spin and polarization effects

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479