Mass renormalization by instantons and the strong Cp problem

Kiwoon Choi*, C. W. Kim, W. K. Sze

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)


Renormalization of the current masses of light quarks by instantons is considered. It is shown that the entire low-energy current mass of the u quark can be generated by this nonperturbative mass renormalization. In this case, the absence of CP nonconservation in the strong interactions is an automatic consequence.

Original languageEnglish
Pages (from-to)794-797
Number of pages4
JournalPhysical Review Letters
Issue number7
Publication statusPublished - 1988
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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