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

arxiv: hep-ph/9910438 · v1 · pith:645BYFVQnew · submitted 1999-10-21 · ✦ hep-ph

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

J. Gasser (Bern University) , V. E. Lyubovitskij (Bern University , JINR , Dubna , Tomsk University) , A. Rusetsky (Bern University , HEPI , Tbilisi University) This is my paper

classification ✦ hep-ph

keywords atomlifetimeanalysisanalyticanalyzeapplychiralchpt

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

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