Derivation and implications of rigorous absolute bounds for ππ partial waves up to 1 GeV |
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Authors: | B. Bonnier |
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Affiliation: | CERN, Geneva, Switzerland |
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Abstract: | Generalized dispersion relations and axiomatic results are used to derive absolute upper bounds for the ππ partial waves in a complex energy domain containing the physical region up to 1 GeV. As applications, a new lower bound for the π0π0 S-wave scattering length is given and some ambiguities in the connection between resonances and second sheet poles are removed. |
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