Brought to you by:

ππ scattering in three flavour ChPT

, and

Published 17 February 2004 • Published under licence by IOP Publishing Ltd
, , Citation Johan Bijnens et al JHEP01(2004)050 DOI 10.1088/1126-6708/2004/01/050

Download Article PDF

Article metrics

210 Total downloads

Share this article

Author affiliations

1 Department of Theoretical Physics 2, Lund University, Sölvegatan 14A, S 223-62 Lund, Sweden

2 Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Jordi Girona 1-3, E 08034 Barcelona, Spain

Dates

  1. Received 8 January 2004
  2. Accepted 23 January 2004
  3. Published

Buy this article in print

1126-6708/2004/01/050

Abstract

We present the scattering lengths for the ππ 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, the meson masses and decay constants and compare with the results of a dispersive analysis of ππ scattering. The comparison indicates a small but nonzero value for the 1/Nc suppressed NLO low energy constants L4r and L6r.

Export citation and abstract BibTeX RIS

Previous article in issue
Next article in issue
Please wait… references are loading.
10.1088/1126-6708/2004/01/050