Unitarity bound in the composite two Higgs doublet model

Yıldırım E., Moretti S., Yagyu K., De Curtis S.

Scalars 2015, Warszawa, Polonya, 3 - 07 Aralık 2015, ss.8

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Warszawa
  • Basıldığı Ülke: Polonya
  • Sayfa Sayıları: ss.8
  • Karadeniz Teknik Üniversitesi Adresli: Hayır

Özet

We discuss a composite two Higgs doublet model based on a symmetry breaking SO(6) × U (1)_x → SO(4) ×SO(2) × U (1)_x at a scale f, and explain how the effective kinetic terms and Yukawa interactions are obtained.
The coupling of the Higgs boson as a pseudo Nambu-Goldstone boson

to the standard model fields can deviate from
that of the standard model Higgs boson due to the non-linear feature.
These deviations cause
to unitarity violation at high energies because the cancellation of the quadratic energy terms does not happen. We will examine the constrains on parameter space
from perturbative unitarity with a fixed energy scale in the composite two Higgs doublet model.