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Pion-pion phase shifts from covariant perturbation theory for a chiral invariant field theoretic model
The Lehmann model for pion-pion scattering consists of a low-energy expansion of the scattering amplitude to fourth order in the momenta on the basis of the chiral-invariant pion-nucleon Lagrangian. Because of the non-renormalizability of the pion Lagrangian two parameters remain undetermined in the...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
1973
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| Acceso en línea: | https://dx.doi.org/10.1016/0550-3213(73)90097-7 http://cds.cern.ch/record/880791 |