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First observation of $\pi^{-}K^+$ and $\pi^{+}K^-$ atoms, their lifetime measurement and $\pi K$ scattering lengths evaluation
The Low Energy QCD allows to calculate the ππ and π K scattering lengths with high precision. There are accurate relations between these scattering lengths and π + π − , π − K + , π + K − atoms lifetimes. The experiment on the first observation of π − K + and π + K − atoms is described. The atoms we...
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| Lenguaje: | eng |
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SISSA
2016
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| Acceso en línea: | https://dx.doi.org/10.22323/1.282.0637 http://cds.cern.ch/record/2287560 |