Low-energy manifestations of heavy particles: Application to the neutral current

J. Collins, F. Wilczek, A. Zee

Research output: Contribution to journalArticlepeer-review

308 Scopus citations


It is argued that in broken-symmetry theories the decoupling of heavy particles is incomplete. Some possible manifestations of this effect in neutral-current processes and the decay KL→μμ are discussed. In the case of the neutral current, heavy-particle effects may be calculated accurately including strong-interaction corrections. A new method of making such calculations is explained and its application to the neutral-current process discussed in detail. The method is more efficient than previous ones and is especially useful in calculations involving several mass scales.

Original languageEnglish (US)
Pages (from-to)242-247
Number of pages6
JournalPhysical Review D
Issue number1
StatePublished - 1978

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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