The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Johan Bijnens in front of his whiteboard

Johan Bijnens

Professor, Deputy Head of Division

Johan Bijnens in front of his whiteboard

Two-point functions and S-parameter in QCD-like theories

Author

  • Johan Bijnens
  • Jie Lu

Summary, in English

We calculated the vector, axial-vector, scalar and pseudo-scalar two-point functions up to two-loop level in the low-energy effective field theory for three different QCD-like theories. In addition we also calculated the pseudo-scalar decay constant G M. The QCD-like theories we used are those with fermions in a complex, real or pseudoreal representation with in general n flavours. These case correspond to global symmetry breaking pattern of SU(n)(L) x SU(n)(R) -> SU(n)(V), SU(2n) -> SO(2n) or SU(2n) -> Sp(2n). We also estimated the S parameter for those different theories.

Department/s

  • Theoretical Particle Physics - Has been reorganised

Publishing year

2012

Language

English

Publication/Series

Journal of High Energy Physics

Issue

1

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • Spontaneous Symmetry Breaking
  • Chiral Lagrangians
  • Technicolor and
  • Composite Models
  • Lattice Quantum Field Theory

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479