Journal of High Energy Physics

, 2013:167

High-energy suppression of the Higgsstrahlung cross section in the Minimal Composite Higgs Model

Article

DOI: 10.1007/JHEP01(2013)167

Cite this article as:
Hartling, K. & Logan, H.E. J. High Energ. Phys. (2013) 2013: 167. doi:10.1007/JHEP01(2013)167

Abstract

If the Higgs boson is composite, signs of this compositeness should appear via a formfactor-like suppression of Higgs scattering cross sections at momentum transfers above the compositeness scale. We explore this by computing the cross section for e+eZH (Higgsstrahlung) in a warped five-dimensional gauge-Higgs unification model known as the Minimal Composite Higgs Model (MCHM). We observe that the Higgsstrahlung cross section in the MCHM is strongly suppressed compared to that in the Standard Model at center-of-mass energies above the scale of the first Kaluza-Klein excitations, due to cancellations among the contributions of successive Z boson Kaluza-Klein modes. We also show that the magnitude and sign of the coupling of the first Kaluza-Klein mode can be measured at a future electron-positron collider such as the proposed International Linear Collider or Compact Linear Collider.

Keywords

Higgs PhysicsBeyond Standard Model

Copyright information

© SISSA, Trieste, Italy 2013

Authors and Affiliations

  1. 1.Ottawa-Carleton Institute for PhysicsCarleton UniversityOttawaCanada