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Johan Bijnens in front of his whiteboard

Johan Bijnens

Professor, Deputy Head of Division

Johan Bijnens in front of his whiteboard

Pi pi scattering in three flavor ChPT : ππ scattering in three flavour ChPT

Author

  • Johan Bijnens
  • Pierre Dhonte
  • Pere Talavera

Summary, in English

We present the scattering lengths for the pi-pi processes in the three flavour Chiral Perturbation Theory (ChPT) framework at next-to-next-to-leading order. We then combine this calculation with the determination of the parameters from $Ke4 and the masses and decay constants and compare with the results of a dispersive analysis of pi-pi scattering. The comparison indicates a small but nonzero value for the 1/Nc suppressed NLO low energy constants L4r and L6r.

Department/s

  • Department of Astronomy and Theoretical Physics - Has been reorganised

Publishing year

2004

Language

English

Publication/Series

Journal of High Energy Physics

Volume

05

Issue

JHEP01(2004)

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • Chiral Lagrangians
  • Spontaneous Symmetry Breaking

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479