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Semileptonic Hyperon Decay - A Problem for Chiral Perturbation-Theory
Physics Letters B (1985)
  • JF Donoghue
  • BR Holstein
We study the recently computed mk2lnm2k corrections to hyperton beta decay found in chiral perturbation theory. The inclusion of these effects is not compatible with the high precision hyperon data, yielding a fit much inferior to the standard assumption of SU(3) invariance. This incompatibility of data and theory is a problem for the application of chiral perturbation theory.
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JF Donoghue and BR Holstein. "Semileptonic Hyperon Decay - A Problem for Chiral Perturbation-Theory" Physics Letters B Vol. 160 Iss. 1-3 (1985)
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