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Investigation of $\pi^+\pi^-, K^+\pi^-$ and $\pi^+K^-$ atoms for pion-pion and pion-kaon scattering length measurements
Theory, using Low Energy QCD, calculated with high precision the $\pi\pi$ and $\pi K$ scattering length. Lifetime of $\pi^+\pi^−$ atoms are related with a difference of pion-pion s-wave scattering lengths with isospin 0 and 2: $|a_0 − a_2|$. Energy splitting between p-states (long-lived atoms) and s...
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Lenguaje: | eng |
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2015
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Acceso en línea: | http://cds.cern.ch/record/2773735 |