Ultraviolet modifications of dispersion relations in effective field theory

Robert C. Myers, Maxim Pospelov

Research output: Contribution to journalArticlepeer-review

309 Scopus citations


The existence of a fundamental ultraviolet scale leads to modifications of the dispersion relations for particles at high energies. The effective field theory was applied to the problem and dimension-5 operators that do not mix with dimensions 3 and 4 were identified. Results showed that for electrons, photons, and light quarks, clock comparison experiments bound these operators at 10-5/Mp1.

Original languageEnglish (US)
Article number211601
Pages (from-to)2116011-2160114
Number of pages1
JournalPhysical Review Letters
Issue number21
StatePublished - May 30 2003

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