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A determination of the S-wave pion-pion scattering lengths from the measurement of the lifetime of pionium
The aim of the DIRAC Experiment at CERN is to provide an accurate determination of the S-wave pi pi scattering lengths from the measurement of the lifetime of pi /sup +/ pi /sup -/ atoms. The precision of the measurement will submit low-energy predictions from Chiral Perturbation Theory to a stringe...
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| Lenguaje: | eng |
| Publicado: |
2001
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| Acceso en línea: | http://cds.cern.ch/record/884911 |