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14:30

Dispersive study of pion-kaon scattering: the kappa and other strange resonances and threshold parameters

Jose Pelaez (Universidad Complutense de Madrid)

21 Gennaio 2021 @ 14:30 - 16:30

We have recently completed the coupled dispersive analysis of  pi pi -> K anti-K We show that just fitting data fails to satisfy the dispersive representation and leads to inconsistencies with threshold sum-rules as well as unreliable resonance parameterizations. Our main result is a set of constrained fits to data that satisfy 16 dispersion relations of different kinds and allow for a …

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