[Formula presented][Formula presented] rule in the light of two-dimensional QCD

John Ellis, Yitzhak Frishman, Amihay Hanany, Marek Karliner

Research output: Contribution to journalArticlepeer-review

Abstract

We calculate in two-dimensional QCD (QCD[Formula presented] the ratios of baryonic matrix elements of [Formula presented] and [Formula presented] four-fermion operators, with a view to understanding better the mechanism of [Formula presented] enhancement in QCD[Formula presented]. We find relatively small suppressions of both the scalar-scalar and vector-vector [Formula presented] four-fermion operators. We discuss the possible implications of these results, in view of a suggestion that gluon condensation may be an important contributing factor in the [Formula presented] enhancement seen in QCD[Formula presented]. At the technical level, our calculation of the vector-vector operator matrix element requires a treatment of the time dependence of the QCD[Formula presented] soliton which had not been developed in previous phenomenological calculations within this model.

Original languageEnglish
Pages (from-to)3994-4000
Number of pages7
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume55
Issue number7
DOIs
StatePublished - 1997

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