Decay widths and energy shifts of pi pi and pi K atoms

Details Decay widths and energy shifts of pi pi and pi K atoms Decay widths and energy shifts of pi pi and pi K atoms

2004-01-09

arxiv.org/abs/hep-ph/0401048v2

Phys.Lett. B587 (2004) 33-40

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version to be published in Phys. Lett. B. Four references added, correlation matrix for pi K scattering lengths updated, uncer

Scientific paper

10.1016/j.physletb.2004.03.007

We calculate the S-wave decay widths and energy shifts for pi pi and pi K
atoms in the framework of QCD+QED. The evaluation - valid at next-to-leading
order in isospin symmetry breaking - is performed within a non-relativistic
effective field theory. The results are of interest for future hadronic atom
experiments.

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