The pion-pion scattering lengths from DIRAC
High Energy Physics - Phenomenology
2019-08-14 v1
Abstract
The scattering lengths of a two pion system are the {\it golden magnitudes} to test the QCD predictions in the low energy sector. The DIRAC (PS-212) experiment at CERN will obtain a particular combination of the S-wave isospin 0 and 2 scattering lengths by measuring the lifetime of pionium, the hydrogen-like atom. This measurement tests the accurate predictions of the Chiral Perturbation Theory. The most recent experimental results are presented.
Cite
@article{arxiv.hep-ph/0309335,
title = {The pion-pion scattering lengths from DIRAC},
author = {Cibran Santamarina},
journal= {arXiv preprint arXiv:hep-ph/0309335},
year = {2019}
}
Comments
Talk presented at Xth International Conference on Hadron Spectroscopy HADRON '03, August 31 -- September 6, 2003, Aschaffenburg, Germany