Mass renormalization by instantons and the strong Cp problem

Kiwoon Choi, C. W. Kim, Wah-Keung Sze

Research output: Contribution to journalArticlepeer-review

91 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

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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