Your browser has javascript turned off or blocked. This will lead to some parts of our website to not work properly or at all. Turn on javascript for best performance.

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.

Photo of Johan Bijnens

Johan Bijnens

Professor

Photo of Johan Bijnens

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

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