Isospin breaking in low-energy pion nucleon scattering - INSPIRE

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Isospin breaking in low-energy pion nucleon scattering

1995

4 pages

Published in:

Phys.Rev.Lett. 74 (1995) 3740-3743

DOI:

10.1103/PhysRevLett.74.3740

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Abstract: (APS)

We have analyzed low-energy pion-nucleon data for isospin invariance by comparing charge-exchange amplitudes derived from charge-exchange data with those predicted from recent π±p elastic data through the application of isospin invariance. A discrepancy of the order of 7% is observed beyond the contributions of the π±p Coulomb interaction and the hadronic mass differences.

pi nucleon: elastic scattering
elastic scattering: pi nucleon
pi nucleon: charge exchange
charge exchange: pi nucleon
isospin: violation
violation: isospin
scattering amplitude
amplitude analysis
partial wave
numerical calculations: interpretation of experiments

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