Elimination of ambiguities in pion-pion phase shifts using crossing symmetry

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dc.creatorKaminski, R.
dc.creatorLesniak, L.
dc.creatorLoiseau, B.
dc.date2002-10-24
dc.date.accessioned2026-07-07T10:33:10Z
dc.date.available2026-07-07T10:33:10Z
dc.descriptionRoy's equations, which incorporate crossing symmetry of the pion-pion scattering amplitudes, are used to resolve the present ambiguity between two solutions for the scalar-isoscalar phase shifts below 1 GeV. It is shown that the "down-flat" solution satisfies well Roy's equations and consequently crossing symmetry while the other solution called "up-flat" does not and thus should be eliminated.
dc.description14 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0210334
dc.identifierhttp://arxiv.org/abs/hep-ph/0210334
dc.identifierPhys.Lett.B551:241-248,2003
dc.identifierdoi:10.1016/S0370-2693(02)03021-6
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179012
dc.subjectHigh Energy Physics - Phenomenology
dc.titleElimination of ambiguities in pion-pion phase shifts using crossing symmetry
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