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arXiv · hep-ph/0401048

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

J. Schweizer
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Abstract

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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J. Schweizer. 2004-03-31. Decay widths and energy shifts of pi pi and pi K atoms. https://doi.org/10.1016/j.physletb.2004.03.007

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