(Pi+Pi-) Atom in Chiral Perturbation Theory
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
Hadronic (Pi+Pi-) atom is studied in the relativistic perturbative approach based on the Bethe-Salpeter equation. The general expression for the atom lifetime is derived. Lowest-order corrections to the relativistic Deser-type formula for the atom lifetime are evaluated within the Chiral Perturbation Theory.
Keywords
Cite
@article{arxiv.hep-ph/9805356,
title = {(Pi+Pi-) Atom in Chiral Perturbation Theory},
author = {M. A. Ivanov and V. E. Lyubovitskij and E. Z. Lipartia and A. G. Rusetsky},
journal= {arXiv preprint arXiv:hep-ph/9805356},
year = {2009}
}
Comments
36 pages, LaTeX-file (revtex.sty)