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Isospin mixing as a source of enhanced isospin violation in pi N scattering
A small eta impurity in pi /sup 0/ can sometimes cause large deviations from isospin invariance in pi /sup -/p to pi /sup 0/n, and could account for the observed experimental indications of violation of the backward isospin bounds below 1 GeV/c. Possible large effects of mixing between formed N*...
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Lenguaje: | eng |
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1972
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Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(72)90297-3 http://cds.cern.ch/record/875713 |
Sumario: | A small eta impurity in pi /sup 0/ can sometimes cause large deviations from isospin invariance in pi /sup -/p to pi /sup 0/n, and could account for the observed experimental indications of violation of the backward isospin bounds below 1 GeV/c. Possible large effects of mixing between formed N*'s and Delta 's are also briefly considered. (14 refs). |
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