Quark models, current algebras, and radiative corrections to beta decay

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Abstract

We study radiative corrections to semileptonic decays. Special commutation relations between the weak and electromagnetic currents reduce the question of finiteness of i→f+e-+ν̄ to that of the finiteness of f|JμW|iZ2e. In a quark model with interactions properly chosen, standard renormalization theory is then used to prove that these quantities, hence the order-α radiative corrections to any β decay, are finite. We conclude that commutators are not enough and that some small amount of dynamics is needed to remove divergent radiative corrections.

Original languageEnglish (US)
Pages (from-to)1175-1178
Number of pages4
JournalPhysical Review
Volume169
Issue number5
DOIs
StatePublished - Dec 1 1968
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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