K0-K̄0 mixing in the 1/N(c) expansion

Santiago Peris, Eduardo De Rafael

Research output: Contribution to journalArticleResearchpeer-review

61 Citations (Scopus)


We present the result for the invariant B(K) factor of K0-K̄0 mixing in the chiral limit and to next-to-leading order in the 1/N(c) expansion. We explicitly demonstrate the cancellation of the renormalization scale and scheme dependences between short- and long-distance contributions in the final expression. Numerical estimates are then given, by taking into account increasingly refined short- and long-distance constraints of the underlying QCD Green's function which governs the B(K) factor. (C) 2000 Elsevier Science B.V.
Original languageEnglish
Pages (from-to)213-222
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publication statusPublished - 5 Oct 2000


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