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arXiv · hep-ph/9910438

Numerical analysis of the pi+pi- atom lifetime in ChPT

J. Gasser·V. E. Lyubovitskij·A. Rusetsky
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Abstract

We apply Chiral Perturbation Theory at one loop to analyze the general formula for the pi+pi- atom lifetime derived recently in the framework of QCD. The corresponding analytic expression is investigated numerically, and compared with recent work in the literature.

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J. Gasser, V. E. Lyubovitskij, A. Rusetsky. 1999-10-21. Numerical analysis of the pi+pi- atom lifetime in ChPT. https://doi.org/10.1016/s0370-2693(99)01334-9

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