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Compatibility of Old and New pi n Charge-Exchange Results

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DOI: 10.1016/0370-2693(74)90530-9
OAI: oai:inspirehep.net:1565
Source
INSPIRE-HEP
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Unknown
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Abstract

Results for d σ /d t ( π − p → π 0 n) for 5–18 and 20–101 GeV/ c , from CERN and FNAL respectively, are compatible with a single set of ϱ-Regge pole parameters, contrary to first appearances. These data are simulataneously fitted to a ϱ + ϱ ′ parametrization, together with polarizations, cross section differences Δσ t = σ t ( π − p ) − σ t ( π + p ) , and continuous moment sum rules. A small discrepancy with Δσ t remains, possible to systematic error or a 1 2 % charge-symmetry breakdown.

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